22121211010 has 32 divisors (see below), whose sum is σ = 40225996800. Its totient is φ = 8758031040.

The previous prime is 22121210999. The next prime is 22121211023. The reversal of 22121211010 is 1011212122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1069951 + ... + 1090429.

It is an arithmetic number, because the mean of its divisors is an integer number (1257062400).

Almost surely, 2^22121211010 is an apocalyptic number.

22121211010 is a deficient number, since it is larger than the sum of its proper divisors (18104785790).

22121211010 is a wasteful number, since it uses less digits than its factorization.

22121211010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21586.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22121211010 its reverse (1011212122), we get a palindrome (23132423132).

The spelling of 22121211010 in words is "twenty-two billion, one hundred twenty-one million, two hundred eleven thousand, ten".