202001211220122 has 16 divisors (see below), whose sum is σ = 448891580489280. Its totient is φ = 67333737073356.

The previous prime is 202001211220093. The next prime is 202001211220129. The reversal of 202001211220122 is 221022112100202.

It is a happy number.

202001211220122 is a `hidden beast` number, since 2 + 0 + 200 + 121 + 1 + 220 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 202001211220095 and 202001211220104.

It is not an unprimeable number, because it can be changed into a prime (202001211220129) 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, 1870381585318 + ... + 1870381585425.

It is an arithmetic number, because the mean of its divisors is an integer number (28055723780580).

Almost surely, 2^{202001211220122} is an apocalyptic number.

202001211220122 is an abundant number, since it is smaller than the sum of its proper divisors (246890369269158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202001211220122 is a wasteful number, since it uses less digits than its factorization.

202001211220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740763170754 (or 3740763170748 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202001211220122 its reverse (221022112100202), we get a palindrome (423023323320324).

The spelling of 202001211220122 in words is "two hundred two trillion, one billion, two hundred eleven million, two hundred twenty thousand, one hundred twenty-two".