20200202220121 has 24 divisors (see below), whose sum is σ = 25465765070592. Its totient is φ = 15684401409600.

The previous prime is 20200202220113. The next prime is 20200202220139. The reversal of 20200202220121 is 12102220200202.

It is not a de Polignac number, because 20200202220121 - 2³ = 20200202220113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20200202220095 and 20200202220104.

It is not an unprimeable number, because it can be changed into a prime (20200202220101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42198145 + ... + 42674158.

It is an arithmetic number, because the mean of its divisors is an integer number (1061073544608).

Almost surely, 2^{20200202220121} is an apocalyptic number.

It is an amenable number.

20200202220121 is a deficient number, since it is larger than the sum of its proper divisors (5265562850471).

20200202220121 is a wasteful number, since it uses less digits than its factorization.

20200202220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84872613 (or 84872602 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20200202220121 its reverse (12102220200202), we get a palindrome (32302422420323).

The spelling of 20200202220121 in words is "twenty trillion, two hundred billion, two hundred two million, two hundred twenty thousand, one hundred twenty-one".