21233111133212 has 12 divisors (see below), whose sum is σ = 40535939436216. Its totient is φ = 9651414151440.

The previous prime is 21233111133197. The next prime is 21233111133251.

21233111133212 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241285353743 + ... + 241285353830.

It is an arithmetic number, because the mean of its divisors is an integer number (3377994953018).

Almost surely, 2^{21233111133212} is an apocalyptic number.

21233111133212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21233111133212 is a deficient number, since it is larger than the sum of its proper divisors (19302828303004).

21233111133212 is a wasteful number, since it uses less digits than its factorization.

21233111133212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482570707588 (or 482570707586 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

It can be divided in two parts, 2123311 and 1133212, that added together give a palindrome (3256523).

The spelling of 21233111133212 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred eleven million, one hundred thirty-three thousand, two hundred twelve".