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222102120021211 = 1765906319823341
BaseRepresentation
bin110010100000000000101101…
…111101111011110011011011
31002010101202101121202222211001
4302200000231331323303123
5213102410120211134321
62104212145543045431
764532230403605033
oct6240005575736333
91063352347688731
10222102120021211
116484aa8661a611
1220ab0a66740877
1396c11a88c4521
143cbbb2b1708c3
151aa25bc30bc91
hexca002df7bcdb

222102120021211 has 8 divisors (see below), whose sum is σ = 235167319293984. Its totient is φ = 209036961713280.

The previous prime is 222102120021193. The next prime is 222102120021253. The reversal of 222102120021211 is 112120021201222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222102120021211 - 231 = 222099972537563 is a prime.

It is a super-2 number, since 2×2221021200212112 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222102120027211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1292401 + ... + 21115741.

It is an arithmetic number, because the mean of its divisors is an integer number (29395914911748).

Almost surely, 2222102120021211 is an apocalyptic number.

222102120021211 is a deficient number, since it is larger than the sum of its proper divisors (13065199272773).

222102120021211 is a wasteful number, since it uses less digits than its factorization.

222102120021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20482421.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 222102120021211 its reverse (112120021201222), we get a palindrome (334222141222433).

The spelling of 222102120021211 in words is "two hundred twenty-two trillion, one hundred two billion, one hundred twenty million, twenty-one thousand, two hundred eleven".

Divisors: 1 17 659063 11204071 19823341 336996797 13064830589483 222102120021211