20133221132010 has 64 divisors (see below), whose sum is σ = 55222920324864. Its totient is φ = 4601848204800.

The previous prime is 20133221131931. The next prime is 20133221132027. The reversal of 20133221132010 is 1023112233102.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48859440 + ... + 49269780.

It is an arithmetic number, because the mean of its divisors is an integer number (862858130076).

Almost surely, 2^{20133221132010} is an apocalyptic number.

20133221132010 is an abundant number, since it is smaller than the sum of its proper divisors (35089699192854).

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

20133221132010 is a wasteful number, since it uses less digits than its factorization.

20133221132010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643999.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20133221132010 its reverse (1023112233102), we get a palindrome (21156333365112).

The spelling of 20133221132010 in words is "twenty trillion, one hundred thirty-three billion, two hundred twenty-one million, one hundred thirty-two thousand, ten".