212022121012 has 12 divisors (see below), whose sum is σ = 399580151236. Its totient is φ = 97856363520.

The previous prime is 212022120997. The next prime is 212022121027. The reversal of 212022121012 is 210121220212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212022120997) and next prime (212022121027).

It can be written as a sum of positive squares in 2 ways, for example, as 139318548516 + 72703572496 = 373254^2 + 269636^2 .

It is a super-3 number, since 3×212022121012³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2038674189 + ... + 2038674292.

Almost surely, 2^212022121012 is an apocalyptic number.

It is an amenable number.

212022121012 is a deficient number, since it is larger than the sum of its proper divisors (187558030224).

212022121012 is a wasteful number, since it uses less digits than its factorization.

212022121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077348498 (or 4077348496 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212022121012 its reverse (210121220212), we get a palindrome (422143341224).

The spelling of 212022121012 in words is "two hundred twelve billion, twenty-two million, one hundred twenty-one thousand, twelve".