202012201010122 has 4 divisors (see below), whose sum is σ = 303018301515186. Its totient is φ = 101006100505060.

The previous prime is 202012201010089. The next prime is 202012201010141. The reversal of 202012201010122 is 221010102210202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 193160213407681 + 8851987602441 = 13898209^2 + 2975229^2 .

It is a junction number, because it is equal to n+sod(n) for n = 202012201010096 and 202012201010105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50503050252529 + ... + 50503050252532.

Almost surely, 2^{202012201010122} is an apocalyptic number.

202012201010122 is a deficient number, since it is larger than the sum of its proper divisors (101006100505064).

202012201010122 is a wasteful number, since it uses less digits than its factorization.

202012201010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101006100505063.

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

Adding to 202012201010122 its reverse (221010102210202), we get a palindrome (423022303220324).

The spelling of 202012201010122 in words is "two hundred two trillion, twelve billion, two hundred one million, ten thousand, one hundred twenty-two".