10020122021 has 16 divisors (see below), whose sum is σ = 12757718400. Its totient is φ = 7654627008.

The previous prime is 10020122003. The next prime is 10020122023. The reversal of 10020122021 is 12022102001.

It is a happy number.

It is not a de Polignac number, because 10020122021 - 2³⁰ = 8946380197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10020121993 and 10020122011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020122023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1895831 + ... + 1901108.

It is an arithmetic number, because the mean of its divisors is an integer number (797357400).

Almost surely, 2^10020122021 is an apocalyptic number.

It is an amenable number.

10020122021 is a deficient number, since it is larger than the sum of its proper divisors (2737596379).

10020122021 is a wasteful number, since it uses less digits than its factorization.

10020122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796988.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10020122021 its reverse (12022102001), we get a palindrome (22042224022).

The spelling of 10020122021 in words is "ten billion, twenty million, one hundred twenty-two thousand, twenty-one".