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22222220120030 = 2577912293269719
BaseRepresentation
bin1010000110110000000111…
…00010010100111111011110
32220200102102201200002111202
411003120003202110333132
510403042101322320110
6115132425203315502
74452334221256010
oct503300342247736
986612381602452
1022222220120030
117098432a20087
1225aa99467bb92
13c52714499498
1456b7bdcac1b0
152880b6de70a5
hex143603894fde

22222220120030 has 64 divisors (see below), whose sum is σ = 46330624512000. Its totient is φ = 7516480053888.

The previous prime is 22222220120029. The next prime is 22222220120069. The reversal of 22222220120030 is 3002102222222.

It is a super-2 number, since 2×222222201200302 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22222220119984 and 22222220120011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5161511 + ... + 8431229.

It is an arithmetic number, because the mean of its divisors is an integer number (723916008000).

Almost surely, 222222220120030 is an apocalyptic number.

22222220120030 is an abundant number, since it is smaller than the sum of its proper divisors (24108404391970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22222220120030 is a wasteful number, since it uses less digits than its factorization.

22222220120030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271041.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22222220120030 its reverse (3002102222222), we get a palindrome (25224322342252).

The spelling of 22222220120030 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twenty million, one hundred twenty thousand, thirty".

Divisors: 1 2 5 7 10 14 35 70 79 158 395 553 790 1106 1229 2458 2765 5530 6145 8603 12290 17206 43015 86030 97091 194182 485455 679637 970910 1359274 3269719 3398185 6539438 6796370 16348595 22888033 32697190 45776066 114440165 228880330 258307801 516615602 1291539005 1808154607 2583078010 3616309214 4018484651 8036969302 9040773035 18081546070 20092423255 28129392557 40184846510 56258785114 140646962785 281293925570 317460287429 634920574858 1587301437145 2222222012003 3174602874290 4444444024006 11111110060015 22222220120030