22021122010 has 16 divisors (see below), whose sum is σ = 39675825000. Its totient is φ = 8800047616.

The previous prime is 22021121987. The next prime is 22021122043. The reversal of 22021122010 is 1022112022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16162291161 + 5858830849 = 127131^2 + 76543^2 .

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, 1039135 + ... + 1060114.

Almost surely, 2^22021122010 is an apocalyptic number.

22021122010 is a deficient number, since it is larger than the sum of its proper divisors (17654702990).

22021122010 is a wasteful number, since it uses less digits than its factorization.

22021122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100305.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22021122010 its reverse (1022112022), we get a palindrome (23043234032).

The spelling of 22021122010 in words is "twenty-two billion, twenty-one million, one hundred twenty-two thousand, ten".