212222103121 has 12 divisors (see below), whose sum is σ = 252611789232. Its totient is φ = 177674317128.

The previous prime is 212222103109. The next prime is 212222103127. The reversal of 212222103121 is 121301222212.

It is not a de Polignac number, because 212222103121 - 2⁵ = 212222103089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212222103127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50359095 + ... + 50363308.

It is an arithmetic number, because the mean of its divisors is an integer number (21050982436).

Almost surely, 2^212222103121 is an apocalyptic number.

It is an amenable number.

212222103121 is a deficient number, since it is larger than the sum of its proper divisors (40389686111).

212222103121 is a wasteful number, since it uses less digits than its factorization.

212222103121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100722460 (or 100722453 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 212222103121 its reverse (121301222212), we get a palindrome (333523325333).

The spelling of 212222103121 in words is "two hundred twelve billion, two hundred twenty-two million, one hundred three thousand, one hundred twenty-one".