21312233132010 has 32 divisors (see below), whose sum is σ = 51151798684800. Its totient is φ = 5682991149888.

The previous prime is 21312233131997. The next prime is 21312233132063. The reversal of 21312233132010 is 1023133221312.

It is a super-2 number, since 2×21312233132010² (a number of 27 digits) contains 22 as substring.

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, 16298685 + ... + 17557664.

It is an arithmetic number, because the mean of its divisors is an integer number (1598493708900).

Almost surely, 2^{21312233132010} is an apocalyptic number.

21312233132010 is an abundant number, since it is smaller than the sum of its proper divisors (29839565552790).

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

21312233132010 is a wasteful number, since it uses less digits than its factorization.

21312233132010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33877342.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21312233132010 its reverse (1023133221312), we get a palindrome (22335366353322).

The spelling of 21312233132010 in words is "twenty-one trillion, three hundred twelve billion, two hundred thirty-three million, one hundred thirty-two thousand, ten".