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222120102211121 = 2912622760678887
BaseRepresentation
bin110010100000010001011101…
…110010100010111000110001
31002010110110210211102212222202
4302200101131302202320301
5213103203432131223441
62104224322151512545
764533435124651502
oct6240213562427061
91063413724385882
10222120102211121
1164857674047a94
1220ab4444988755
1396c2ab322a39a
143cbc955482ba9
151aa2cc0d4819b
hexca045dca2e31

222120102211121 has 8 divisors (see below), whose sum is σ = 229781240233920. Its totient is φ = 214459085798608.

The previous prime is 222120102211109. The next prime is 222120102211141. The reversal of 222120102211121 is 121112201021222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-222120102211121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222120102211093 and 222120102211102.

It is not an unprimeable number, because it can be changed into a prime (222120102211141) 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, 26678861 + ... + 34000026.

It is an arithmetic number, because the mean of its divisors is an integer number (28722655029240).

Almost surely, 2222120102211121 is an apocalyptic number.

It is an amenable number.

222120102211121 is a deficient number, since it is larger than the sum of its proper divisors (7661138022799).

222120102211121 is a wasteful number, since it uses less digits than its factorization.

222120102211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60805143.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222120102211121 its reverse (121112201021222), we get a palindrome (343232303232343).

The spelling of 222120102211121 in words is "two hundred twenty-two trillion, one hundred twenty billion, one hundred two million, two hundred eleven thousand, one hundred twenty-one".

Divisors: 1 29 126227 3660583 60678887 1759687723 7659313869349 222120102211121