2121212022022 has 16 divisors (see below), whose sum is σ = 3369023947440. Its totient is φ = 998205526528.

The previous prime is 2121212022011. The next prime is 2121212022023. The reversal of 2121212022022 is 2202202121212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121212022023) 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, 2954718 + ... + 3601774.

It is an arithmetic number, because the mean of its divisors is an integer number (210563996715).

Almost surely, 2^{2121212022022} is an apocalyptic number.

2121212022022 is a deficient number, since it is larger than the sum of its proper divisors (1247811925418).

2121212022022 is a wasteful number, since it uses less digits than its factorization.

2121212022022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743495.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2121212022022 its reverse (2202202121212), we get a palindrome (4323414143234).

The spelling of 2121212022022 in words is "two trillion, one hundred twenty-one billion, two hundred twelve million, twenty-two thousand, twenty-two".