21100233322210 has 64 divisors (see below), whose sum is σ = 45347543781120. Its totient is φ = 6915747283200.

The previous prime is 21100233322177. The next prime is 21100233322211. The reversal of 21100233322210 is 1222333200112.

It is not an unprimeable number, because it can be changed into a prime (21100233322211) 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, 51251424 + ... + 51661483.

It is an arithmetic number, because the mean of its divisors is an integer number (708555371580).

Almost surely, 2^{21100233322210} is an apocalyptic number.

21100233322210 is an abundant number, since it is smaller than the sum of its proper divisors (24247310458910).

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

21100233322210 is a wasteful number, since it uses less digits than its factorization.

21100233322210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102913051.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21100233322210 its reverse (1222333200112), we get a palindrome (22322566522322).

The spelling of 21100233322210 in words is "twenty-one trillion, one hundred billion, two hundred thirty-three million, three hundred twenty-two thousand, two hundred ten".