102211111121 has 8 divisors (see below), whose sum is σ = 116816090304. Its totient is φ = 87606979920.

The previous prime is 102211111081. The next prime is 102211111133. The reversal of 102211111121 is 121111112201.

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 102211111121 - 2²² = 102206916817 is a prime.

It is a super-2 number, since 2×102211111121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102211111096 and 102211111105.

It is not an unprimeable number, because it can be changed into a prime (102211111141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71591 + ... + 457763.

It is an arithmetic number, because the mean of its divisors is an integer number (14602011288).

Almost surely, 2^102211111121 is an apocalyptic number.

It is an amenable number.

102211111121 is a deficient number, since it is larger than the sum of its proper divisors (14604979183).

102211111121 is an equidigital number, since it uses as much as digits as its factorization.

102211111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423991.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 102211111121 its reverse (121111112201), we get a palindrome (223322223322).

The spelling of 102211111121 in words is "one hundred two billion, two hundred eleven million, one hundred eleven thousand, one hundred twenty-one".