2021120102122 has 32 divisors (see below), whose sum is σ = 3346437441600. Its totient is φ = 907860441600.

The previous prime is 2021120102101. The next prime is 2021120102129. The reversal of 2021120102122 is 2212010211202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2021120102096 and 2021120102105.

It is not an unprimeable number, because it can be changed into a prime (2021120102129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203079 + ... + 2020762.

It is an arithmetic number, because the mean of its divisors is an integer number (104576170050).

Almost surely, 2^{2021120102122} is an apocalyptic number.

2021120102122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2021120102122 is a deficient number, since it is larger than the sum of its proper divisors (1325317339478).

2021120102122 is a wasteful number, since it uses less digits than its factorization.

2021120102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224342.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2021120102122 its reverse (2212010211202), we get a palindrome (4233130313324).

The spelling of 2021120102122 in words is "two trillion, twenty-one billion, one hundred twenty million, one hundred two thousand, one hundred twenty-two".