21222200110010 has 16 divisors (see below), whose sum is σ = 38201778150696. Its totient is φ = 8488476054528.

The previous prime is 21222200109941. The next prime is 21222200110117. The reversal of 21222200110010 is 1001100222212.

It can be written as a sum of positive squares in 4 ways, for example, as 14425130629849 + 6797069480161 = 3798043^2 + 2607119^2 .

It is a super-2 number, since 2×21222200110010² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50278007 + ... + 50698346.

Almost surely, 2^{21222200110010} is an apocalyptic number.

21222200110010 is a deficient number, since it is larger than the sum of its proper divisors (16979578040686).

21222200110010 is a wasteful number, since it uses less digits than its factorization.

21222200110010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100997377.

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

Adding to 21222200110010 its reverse (1001100222212), we get a palindrome (22223300332222).

The spelling of 21222200110010 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred million, one hundred ten thousand, ten".