21021333211010 has 32 divisors (see below), whose sum is σ = 41282263738944. Its totient is φ = 7643378680000.

The previous prime is 21021333211003. The next prime is 21021333211049. The reversal of 21021333211010 is 1011233312012.

It is a happy 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, 8142836 + ... + 10409055.

It is an arithmetic number, because the mean of its divisors is an integer number (1290070741842).

Almost surely, 2^{21021333211010} is an apocalyptic number.

21021333211010 is a deficient number, since it is larger than the sum of its proper divisors (20260930527934).

21021333211010 is a wasteful number, since it uses less digits than its factorization.

21021333211010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18562210.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21021333211010 its reverse (1011233312012), we get a palindrome (22032566523022).

The spelling of 21021333211010 in words is "twenty-one trillion, twenty-one billion, three hundred thirty-three million, two hundred eleven thousand, ten".