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1201020220212 = 2232311338509049
BaseRepresentation
bin10001011110100010011…
…000100011001100110100
311020211001011102200000020
4101132202120203030310
5124134142134021322
62315424023245140
7152525254301001
oct21364230431464
94224034380006
101201020220212
1142339367069a
121749232a97b0
1389342a845c7
14421b5c1a8a8
152139456305c
hex117a2623334

1201020220212 has 48 divisors (see below), whose sum is σ = 2950101302400. Its totient is φ = 379545177088.

The previous prime is 1201020220193. The next prime is 1201020220319. The reversal of 1201020220212 is 2120220201021.

It is a junction number, because it is equal to n+sod(n) for n = 1201020220191 and 1201020220200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19223337 + ... + 19285712.

It is an arithmetic number, because the mean of its divisors is an integer number (61460443800).

Almost surely, 21201020220212 is an apocalyptic number.

1201020220212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201020220212 is an abundant number, since it is smaller than the sum of its proper divisors (1749081082188).

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

1201020220212 is a wasteful number, since it uses less digits than its factorization.

1201020220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38509192 (or 38509190 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1201020220212 its reverse (2120220201021), we get a palindrome (3321240421233).

The spelling of 1201020220212 in words is "one trillion, two hundred one billion, twenty million, two hundred twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 23 46 69 92 113 138 226 276 339 452 678 1356 2599 5198 7797 10396 15594 31188 38509049 77018098 115527147 154036196 231054294 462108588 885708127 1771416254 2657124381 3542832508 4351522537 5314248762 8703045074 10628497524 13054567611 17406090148 26109135222 52218270444 100085018351 200170036702 300255055053 400340073404 600510110106 1201020220212