202021101000122 has 16 divisors (see below), whose sum is σ = 303119133244200. Its totient is φ = 100981392396288.

The previous prime is 202021101000119. The next prime is 202021101000133. The reversal of 202021101000122 is 221000101120202.

It can be written as a sum of positive squares in 4 ways, for example, as 132438460092481 + 69582640907641 = 11508191^2 + 8341621^2 .

It is a junction number, because it is equal to n+sod(n) for n = 202021101000097 and 202021101000106.

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, 165685754 + ... + 166900602.

Almost surely, 2^{202021101000122} is an apocalyptic number.

202021101000122 is a deficient number, since it is larger than the sum of its proper divisors (101098032244078).

202021101000122 is a wasteful number, since it uses less digits than its factorization.

202021101000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238785.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202021101000122 its reverse (221000101120202), we get a palindrome (423021202120324).

The spelling of 202021101000122 in words is "two hundred two trillion, twenty-one billion, one hundred one million, one hundred twenty-two", and thus it is an aban number.