22121210010 has 16 divisors (see below), whose sum is σ = 53090904096. Its totient is φ = 5898989328.

The previous prime is 22121209961. The next prime is 22121210011. The reversal of 22121210010 is 1001212122.

It is not an unprimeable number, because it can be changed into a prime (22121210011) 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, 368686804 + ... + 368686863.

It is an arithmetic number, because the mean of its divisors is an integer number (3318181506).

Almost surely, 2^22121210010 is an apocalyptic number.

22121210010 is an abundant number, since it is smaller than the sum of its proper divisors (30969694086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22121210010 is a wasteful number, since it uses less digits than its factorization.

22121210010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737373677.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22121210010 its reverse (1001212122), we get a palindrome (23122422132).

The spelling of 22121210010 in words is "twenty-two billion, one hundred twenty-one million, two hundred ten thousand, ten".