20121011222110 has 32 divisors (see below), whose sum is σ = 36761108700960. Its totient is φ = 7927691515392.

The previous prime is 20121011222101. The next prime is 20121011222233. The reversal of 20121011222110 is 1122211012102.

It is a congruent number.

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, 7990626 + ... + 10202554.

It is an arithmetic number, because the mean of its divisors is an integer number (1148784646905).

Almost surely, 2^{20121011222110} is an apocalyptic number.

20121011222110 is a deficient number, since it is larger than the sum of its proper divisors (16640097478850).

20121011222110 is a wasteful number, since it uses less digits than its factorization.

20121011222110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225580.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20121011222110 its reverse (1122211012102), we get a palindrome (21243222234212).

The spelling of 20121011222110 in words is "twenty trillion, one hundred twenty-one billion, eleven million, two hundred twenty-two thousand, one hundred ten".