202021010012122 has 16 divisors (see below), whose sum is σ = 349750659485952. Its totient is φ = 85723200853200.

The previous prime is 202021010012119. The next prime is 202021010012137. The reversal of 202021010012122 is 221210010120202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 202021010012096 and 202021010012105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71435999298 + ... + 71436002125.

It is an arithmetic number, because the mean of its divisors is an integer number (21859416217872).

Almost surely, 2^{202021010012122} is an apocalyptic number.

202021010012122 is a deficient number, since it is larger than the sum of its proper divisors (147729649473830).

202021010012122 is a wasteful number, since it uses less digits than its factorization.

202021010012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142872001533.

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

Adding to 202021010012122 its reverse (221210010120202), we get a palindrome (423231020132324).

The spelling of 202021010012122 in words is "two hundred two trillion, twenty-one billion, ten million, twelve thousand, one hundred twenty-two".