212123033022021 has 32 divisors (see below), whose sum is σ = 308664554452992. Its totient is φ = 128508606999360.

The previous prime is 212123033022001. The next prime is 212123033022031. The reversal of 212123033022021 is 120220330321212.

It is not a de Polignac number, because 212123033022021 - 2²³ = 212123024633413 is a prime.

It is a super-2 number, since 2×212123033022021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212123033021982 and 212123033022000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212123033022001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 874493871 + ... + 874736403.

It is an arithmetic number, because the mean of its divisors is an integer number (9645767326656).

Almost surely, 2^{212123033022021} is an apocalyptic number.

It is an amenable number.

212123033022021 is a deficient number, since it is larger than the sum of its proper divisors (96541521430971).

212123033022021 is a wasteful number, since it uses less digits than its factorization.

212123033022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252913.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 212123033022021 its reverse (120220330321212), we get a palindrome (332343363343233).

The spelling of 212123033022021 in words is "two hundred twelve trillion, one hundred twenty-three billion, thirty-three million, twenty-two thousand, twenty-one".