22221111122002 has 24 divisors (see below), whose sum is σ = 37524176765964. Its totient is φ = 9809988850464.

The previous prime is 22221111121981. The next prime is 22221111122029. The reversal of 22221111122002 is 20022111112222.

It can be written as a sum of positive squares in 2 ways, for example, as 19646976465081 + 2574134656921 = 4432491^2 + 1604411^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 807791653 + ... + 807819160.

Almost surely, 2^{22221111122002} is an apocalyptic number.

22221111122002 is a deficient number, since it is larger than the sum of its proper divisors (15303065643962).

22221111122002 is a wasteful number, since it uses less digits than its factorization.

22221111122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615610874 (or 1615610851 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22221111122002 its reverse (20022111112222), we get a palindrome (42243222234224).

The spelling of 22221111122002 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred eleven million, one hundred twenty-two thousand, two".