2021201202122 has 64 divisors (see below), whose sum is σ = 3219547668480. Its totient is φ = 949011878016.

The previous prime is 2021201202077. The next prime is 2021201202131. The reversal of 2021201202122 is 2212021021202.

It is a happy number.

It is a super-3 number, since 3×2021201202122³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2021201202122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2358460718 + ... + 2358461574.

It is an arithmetic number, because the mean of its divisors is an integer number (50305432320).

Almost surely, 2^{2021201202122} is an apocalyptic number.

2021201202122 is a deficient number, since it is larger than the sum of its proper divisors (1198346466358).

2021201202122 is a wasteful number, since it uses less digits than its factorization.

2021201202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2021201202122 its reverse (2212021021202), we get a palindrome (4233222223324).

The spelling of 2021201202122 in words is "two trillion, twenty-one billion, two hundred one million, two hundred two thousand, one hundred twenty-two".