20121022110 has 64 divisors (see below), whose sum is σ = 55278604800. Its totient is φ = 4591631232.

The previous prime is 20121022079. The next prime is 20121022111. The reversal of 20121022110 is 1122012102.

It is a super-2 number, since 2×20121022110² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121022111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52596 + ... + 207384.

It is an arithmetic number, because the mean of its divisors is an integer number (863728200).

Almost surely, 2^20121022110 is an apocalyptic number.

20121022110 is an abundant number, since it is smaller than the sum of its proper divisors (35157582690).

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

20121022110 is a wasteful number, since it uses less digits than its factorization.

20121022110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155425.

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

Adding to 20121022110 its reverse (1122012102), we get a palindrome (21243034212).

The spelling of 20121022110 in words is "twenty billion, one hundred twenty-one million, twenty-two thousand, one hundred ten".