21012010032110 has 64 divisors (see below), whose sum is σ = 40643135188992. Its totient is φ = 7800782495616.

The previous prime is 21012010032109. The next prime is 21012010032119. The reversal of 21012010032110 is 1123001021012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21012010032119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 240722 + ... + 6487061.

It is an arithmetic number, because the mean of its divisors is an integer number (635048987328).

Almost surely, 2^{21012010032110} is an apocalyptic number.

21012010032110 is a deficient number, since it is larger than the sum of its proper divisors (19631125156882).

21012010032110 is a wasteful number, since it uses less digits than its factorization.

21012010032110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6728217.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21012010032110 its reverse (1123001021012), we get a palindrome (22135011053122).

The spelling of 21012010032110 in words is "twenty-one trillion, twelve billion, ten million, thirty-two thousand, one hundred ten".