2012001220122 has 16 divisors (see below), whose sum is σ = 4162761145440. Its totient is φ = 647540622512.

The previous prime is 2012001220081. The next prime is 2012001220127. The reversal of 2012001220122 is 2210221002102.

It is not an unprimeable number, because it can be changed into a prime (2012001220127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5781612528 + ... + 5781612875.

It is an arithmetic number, because the mean of its divisors is an integer number (260172571590).

Almost surely, 2^{2012001220122} is an apocalyptic number.

2012001220122 is an abundant number, since it is smaller than the sum of its proper divisors (2150759925318).

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

2012001220122 is a wasteful number, since it uses less digits than its factorization.

2012001220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11563225437.

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

Adding to 2012001220122 its reverse (2210221002102), we get a palindrome (4222222222224).

The spelling of 2012001220122 in words is "two trillion, twelve billion, one million, two hundred twenty thousand, one hundred twenty-two".