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222002121022101 = 3277149631594237
BaseRepresentation
bin110010011110100011100101…
…100100000001101010010101
31002010001012021112000111112100
4302132203211210001222111
5213044240320440201401
62104054211053312313
764522060341255420
oct6236434544015225
91063035245014470
10222002121022101
11648116308084a2
1220a955b9195699
1396b4930375534
143cb6d622d09b7
151a9ebb821db86
hexc9e8e5901a95

222002121022101 has 24 divisors (see below), whose sum is σ = 371641377654144. Its totient is φ = 125071617474720.

The previous prime is 222002121022091. The next prime is 222002121022141. The reversal of 222002121022101 is 101220121200222.

It is a happy number.

222002121022101 is a `hidden beast` number, since 2 + 220 + 0 + 21 + 210 + 2 + 210 + 1 = 666.

It is not a de Polignac number, because 222002121022101 - 25 = 222002121022069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222002121022141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24815792646 + ... + 24815801591.

It is an arithmetic number, because the mean of its divisors is an integer number (15485057402256).

Almost surely, 2222002121022101 is an apocalyptic number.

222002121022101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222002121022101 is a deficient number, since it is larger than the sum of its proper divisors (149639256632043).

222002121022101 is a wasteful number, since it uses less digits than its factorization.

222002121022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49631594321 (or 49631594318 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222002121022101 its reverse (101220121200222), we get a palindrome (323222242222323).

The spelling of 222002121022101 in words is "two hundred twenty-two trillion, two billion, one hundred twenty-one million, twenty-two thousand, one hundred one".

Divisors: 1 3 7 9 21 63 71 213 497 639 1491 4473 49631594237 148894782711 347421159659 446684348133 1042263478977 3126790436931 3523843190827 10571529572481 24666902335789 31714588717443 74000707007367 222002121022101