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10102020222 = 23744311627
BaseRepresentation
bin10010110100010000…
…01001100001111110
3222002000201210120010
421122020021201332
5131142104121342
64350225204050
7505223520000
oct113210114176
928060653503
1010102020222
114314366348
121b5b190626
13c4cb8a678
146bb91c370
153e1d1129c
hex25a20987e

10102020222 has 80 divisors (see below), whose sum is σ = 23639185152. Its totient is φ = 2877824880.

The previous prime is 10102020191. The next prime is 10102020239. The reversal of 10102020222 is 22202020101.

It is a junction number, because it is equal to n+sod(n) for n = 10102020198 and 10102020207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6208173 + ... + 6209799.

Almost surely, 210102020222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10102020222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11819592576).

10102020222 is an abundant number, since it is smaller than the sum of its proper divisors (13537164930).

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

10102020222 is an equidigital number, since it uses as much as digits as its factorization.

10102020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091 (or 2070 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 10102020222 its reverse (22202020101), we get a palindrome (32304040323).

The spelling of 10102020222 in words is "ten billion, one hundred two million, twenty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 294 343 431 686 862 1029 1293 1627 2058 2401 2586 3017 3254 4802 4881 6034 7203 9051 9762 11389 14406 18102 21119 22778 34167 42238 63357 68334 79723 126714 147833 159446 239169 295666 443499 478338 558061 701237 886998 1034831 1116122 1402474 1674183 2069662 2103711 3104493 3348366 3906427 4207422 4908659 6208986 7812854 9817318 11719281 14725977 23438562 29451954 34360613 68721226 103081839 206163678 240524291 481048582 721572873 1443145746 1683670037 3367340074 5051010111 10102020222