2021121012202 has 16 divisors (see below), whose sum is σ = 3210085598400. Its totient is φ = 951095067328.

The previous prime is 2021121012193. The next prime is 2021121012271. The reversal of 2021121012202 is 2022101211202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 998643 + ... + 2244889.

It is an arithmetic number, because the mean of its divisors is an integer number (200630349900).

Almost surely, 2^{2021121012202} is an apocalyptic number.

2021121012202 is a deficient number, since it is larger than the sum of its proper divisors (1188964586198).

2021121012202 is a wasteful number, since it uses less digits than its factorization.

2021121012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293965.

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

Adding to 2021121012202 its reverse (2022101211202), we get a palindrome (4043222223404).

The spelling of 2021121012202 in words is "two trillion, twenty-one billion, one hundred twenty-one million, twelve thousand, two hundred two".