21222200011010 has 32 divisors (see below), whose sum is σ = 40550993524080. Its totient is φ = 7968995448832.

The previous prime is 21222200011003. The next prime is 21222200011037. The reversal of 21222200011010 is 1011000222212.

It can be written as a sum of positive squares in 8 ways, for example, as 6443642095489 + 14778557915521 = 2538433^2 + 3844289^2 .

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, 160392059 + ... + 160524318.

Almost surely, 2^{21222200011010} is an apocalyptic number.

21222200011010 is a deficient number, since it is larger than the sum of its proper divisors (19328793513070).

21222200011010 is a wasteful number, since it uses less digits than its factorization.

21222200011010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320916790.

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

Adding to 21222200011010 its reverse (1011000222212), we get a palindrome (22233200233222).

The spelling of 21222200011010 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred million, eleven thousand, ten".