20121020010222 has 128 divisors (see below), whose sum is σ = 43414266470400. Its totient is φ = 6194321942016.

The previous prime is 20121020010193. The next prime is 20121020010257. The reversal of 20121020010222 is 22201002012102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1374473179 + ... + 1374487817.

It is an arithmetic number, because the mean of its divisors is an integer number (339173956800).

Almost surely, 2^{20121020010222} is an apocalyptic number.

20121020010222 is an abundant number, since it is smaller than the sum of its proper divisors (23293246460178).

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

20121020010222 is a wasteful number, since it uses less digits than its factorization.

20121020010222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15830.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20121020010222 its reverse (22201002012102), we get a palindrome (42322022022324).

The spelling of 20121020010222 in words is "twenty trillion, one hundred twenty-one billion, twenty million, ten thousand, two hundred twenty-two".