212123102021232 has 80 divisors (see below), whose sum is σ = 557460027774720. Its totient is φ = 69494589784576.

The previous prime is 212123102021177. The next prime is 212123102021261. The reversal of 212123102021232 is 232120201321212.

It is a super-2 number, since 2×212123102021232² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147952098 + ... + 149378945.

It is an arithmetic number, because the mean of its divisors is an integer number (6968250347184).

Almost surely, 2^{212123102021232} is an apocalyptic number.

It is an amenable number.

212123102021232 is an abundant number, since it is smaller than the sum of its proper divisors (345336925753488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212123102021232 is a wasteful number, since it uses less digits than its factorization.

212123102021232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297331310 (or 297331304 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 212123102021232 its reverse (232120201321212), we get a palindrome (444243303342444).

The spelling of 212123102021232 in words is "two hundred twelve trillion, one hundred twenty-three billion, one hundred two million, twenty-one thousand, two hundred thirty-two".