22121212010 has 16 divisors (see below), whose sum is σ = 40040632800. Its totient is φ = 8799051216.

The previous prime is 22121212007. The next prime is 22121212031. The reversal of 22121212010 is 1021212122.

It is a Curzon number.

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, 6177320 + ... + 6180899.

It is an arithmetic number, because the mean of its divisors is an integer number (2502539550).

Almost surely, 2^22121212010 is an apocalyptic number.

22121212010 is a deficient number, since it is larger than the sum of its proper divisors (17919420790).

22121212010 is a wasteful number, since it uses less digits than its factorization.

22121212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12358405.

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

Adding to 22121212010 its reverse (1021212122), we get a palindrome (23142424132).

The spelling of 22121212010 in words is "twenty-two billion, one hundred twenty-one million, two hundred twelve thousand, ten".