22120021010 has 16 divisors (see below), whose sum is σ = 39817949976. Its totient is φ = 8847583488.

The previous prime is 22120020973. The next prime is 22120021013. The reversal of 22120021010 is 1012002122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19303489969 + 2816531041 = 138937^2 + 53071^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22120020982 and 22120021000.

It is not an unprimeable number, because it can be changed into a prime (22120021013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245432 + ... + 323228.

Almost surely, 2^22120021010 is an apocalyptic number.

22120021010 is a deficient number, since it is larger than the sum of its proper divisors (17697928966).

22120021010 is a wasteful number, since it uses less digits than its factorization.

22120021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106237.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22120021010 its reverse (1012002122), we get a palindrome (23132023132).

The spelling of 22120021010 in words is "twenty-two billion, one hundred twenty million, twenty-one thousand, ten".