212133103021231 has 32 divisors (see below), whose sum is σ = 252065009664000. Its totient is φ = 174671402209920.

The previous prime is 212133103021219. The next prime is 212133103021319. The reversal of 212133103021231 is 132120301331212.

It is not a de Polignac number, because 212133103021231 - 2⁵ = 212133103021199 is a prime.

It is a super-2 number, since 2×212133103021231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212133103021196 and 212133103021205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212133103025231) 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, 2813734546 + ... + 2813809936.

It is an arithmetic number, because the mean of its divisors is an integer number (7877031552000).

Almost surely, 2^{212133103021231} is an apocalyptic number.

212133103021231 is a deficient number, since it is larger than the sum of its proper divisors (39931906642769).

212133103021231 is a wasteful number, since it uses less digits than its factorization.

212133103021231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145279.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 212133103021231 its reverse (132120301331212), we get a palindrome (344253404352443).

The spelling of 212133103021231 in words is "two hundred twelve trillion, one hundred thirty-three billion, one hundred three million, twenty-one thousand, two hundred thirty-one".