20202101121 has 32 divisors (see below), whose sum is σ = 28118832640. Its totient is φ = 12889933056.

The previous prime is 20202101077. The next prime is 20202101131. The reversal of 20202101121 is 12110120202.

It is not a de Polignac number, because 20202101121 - 2⁹ = 20202100609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20202101097 and 20202101106.

It is not an unprimeable number, because it can be changed into a prime (20202101131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2424855 + ... + 2433171.

It is an arithmetic number, because the mean of its divisors is an integer number (878713520).

Almost surely, 2^20202101121 is an apocalyptic number.

It is an amenable number.

20202101121 is a deficient number, since it is larger than the sum of its proper divisors (7916731519).

20202101121 is a wasteful number, since it uses less digits than its factorization.

20202101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8713.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20202101121 its reverse (12110120202), we get a palindrome (32312221323).

The spelling of 20202101121 in words is "twenty billion, two hundred two million, one hundred one thousand, one hundred twenty-one".