21010222002210 has 32 divisors (see below), whose sum is σ = 57628037492352. Its totient is φ = 4802336457600.

The previous prime is 21010222002167. The next prime is 21010222002223. The reversal of 21010222002210 is 1220022201012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 21010222002210.

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, 50024337891 + ... + 50024338310.

It is an arithmetic number, because the mean of its divisors is an integer number (1800876171636).

Almost surely, 2^{21010222002210} is an apocalyptic number.

21010222002210 is an abundant number, since it is smaller than the sum of its proper divisors (36617815490142).

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

21010222002210 is a wasteful number, since it uses less digits than its factorization.

21010222002210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100048676218.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21010222002210 its reverse (1220022201012), we get a palindrome (22230244203222).

The spelling of 21010222002210 in words is "twenty-one trillion, ten billion, two hundred twenty-two million, two thousand, two hundred ten".