2021012210122 has 32 divisors (see below), whose sum is σ = 3151158451200. Its totient is φ = 971085888000.

The previous prime is 2021012210117. The next prime is 2021012210141. The reversal of 2021012210122 is 2210122101202.

It is a happy number.

It is a super-2 number, since 2×2021012210122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021012210096 and 2021012210105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27196954 + ... + 27271162.

It is an arithmetic number, because the mean of its divisors is an integer number (98473701600).

Almost surely, 2^{2021012210122} is an apocalyptic number.

2021012210122 is a deficient number, since it is larger than the sum of its proper divisors (1130146241078).

2021012210122 is a wasteful number, since it uses less digits than its factorization.

2021012210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77302.

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

Adding to 2021012210122 its reverse (2210122101202), we get a palindrome (4231134311324).

The spelling of 2021012210122 in words is "two trillion, twenty-one billion, twelve million, two hundred ten thousand, one hundred twenty-two".