21233044033212 has 48 divisors (see below), whose sum is σ = 54048060993024. Its totient is φ = 6434218560000.

The previous prime is 21233044033193. The next prime is 21233044033273.

It is a happy number.

21233044033212 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 21233044033212.

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, 29957037 + ... + 30657627.

It is an arithmetic number, because the mean of its divisors is an integer number (1126001270688).

Almost surely, 2^{21233044033212} is an apocalyptic number.

21233044033212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21233044033212 is an abundant number, since it is smaller than the sum of its proper divisors (32815016959812).

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

21233044033212 is a wasteful number, since it uses less digits than its factorization.

21233044033212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930210 (or 930208 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

It can be divided in two parts, 2123304 and 4033212, that added together give a palindrome (6156516).

The spelling of 21233044033212 in words is "twenty-one trillion, two hundred thirty-three billion, forty-four million, thirty-three thousand, two hundred twelve".