21111333312010 has 8 divisors (see below), whose sum is σ = 38000399961636. Its totient is φ = 8444533324800.

The previous prime is 21111333312007. The next prime is 21111333312023. The reversal of 21111333312010 is 1021333311112.

It can be written as a sum of positive squares in 2 ways, for example, as 16931406218841 + 4179927093169 = 4114779^2 + 2044487^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055566665591 + ... + 1055566665610.

Almost surely, 2^{21111333312010} is an apocalyptic number.

21111333312010 is a deficient number, since it is larger than the sum of its proper divisors (16889066649626).

21111333312010 is a wasteful number, since it uses less digits than its factorization.

21111333312010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111133331208.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 21111333312010 its reverse (1021333311112), we get a palindrome (22132666623122).

The spelling of 21111333312010 in words is "twenty-one trillion, one hundred eleven billion, three hundred thirty-three million, three hundred twelve thousand, ten".