21222100210010 has 64 divisors (see below), whose sum is σ = 43710974866944. Its totient is φ = 7267139692800.

The previous prime is 21222100210001. The next prime is 21222100210021. The reversal of 21222100210010 is 1001200122212.

It is a super-2 number, since 2×21222100210010² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216629099 + ... + 216727041.

It is an arithmetic number, because the mean of its divisors is an integer number (682983982296).

Almost surely, 2^{21222100210010} is an apocalyptic number.

21222100210010 is an abundant number, since it is smaller than the sum of its proper divisors (22488874656934).

21222100210010 is a wasteful number, since it uses less digits than its factorization.

21222100210010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101759.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21222100210010 its reverse (1001200122212), we get a palindrome (22223300332222).

The spelling of 21222100210010 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred million, two hundred ten thousand, ten".