212022110121 has 24 divisors (see below), whose sum is σ = 289671160896. Its totient is φ = 137942713440.

The previous prime is 212022110107. The next prime is 212022110123. The reversal of 212022110121 is 121011220212.

It is not a de Polignac number, because 212022110121 - 2⁹ = 212022109609 is a prime.

It is a super-2 number, since 2×212022110121² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212022110121.

It is not an unprimeable number, because it can be changed into a prime (212022110123) 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, 6712756 + ... + 6744266.

It is an arithmetic number, because the mean of its divisors is an integer number (12069631704).

Almost surely, 2^212022110121 is an apocalyptic number.

It is an amenable number.

212022110121 is a deficient number, since it is larger than the sum of its proper divisors (77649050775).

212022110121 is a wasteful number, since it uses less digits than its factorization.

212022110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32813 (or 32770 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212022110121 its reverse (121011220212), we get a palindrome (333033330333).

The spelling of 212022110121 in words is "two hundred twelve billion, twenty-two million, one hundred ten thousand, one hundred twenty-one".