2021200120122 has 16 divisors (see below), whose sum is σ = 4042417647072. Its totient is φ = 673730472240.

The previous prime is 2021200120117. The next prime is 2021200120127. The reversal of 2021200120122 is 2210210021202.

It is an interprime number because it is at equal distance from previous prime (2021200120117) and next prime (2021200120127).

It is not an unprimeable number, because it can be changed into a prime (2021200120127) 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, 1161972 + ... + 2322192.

It is an arithmetic number, because the mean of its divisors is an integer number (252651102942).

Almost surely, 2^{2021200120122} is an apocalyptic number.

2021200120122 is an abundant number, since it is smaller than the sum of its proper divisors (2021217526950).

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

2021200120122 is a wasteful number, since it uses less digits than its factorization.

2021200120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450573.

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

Adding to 2021200120122 its reverse (2210210021202), we get a palindrome (4231410141324).

The spelling of 2021200120122 in words is "two trillion, twenty-one billion, two hundred million, one hundred twenty thousand, one hundred twenty-two".