10200220121 has 16 divisors (see below), whose sum is σ = 12577383168. Its totient is φ = 8055547200.

The previous prime is 10200220087. The next prime is 10200220123. The reversal of 10200220121 is 12102200201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10200220121 - 2²⁶ = 10133111257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10200220123) 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, 54365 + ... + 152826.

It is an arithmetic number, because the mean of its divisors is an integer number (786086448).

Almost surely, 2^10200220121 is an apocalyptic number.

It is an amenable number.

10200220121 is a deficient number, since it is larger than the sum of its proper divisors (2377163047).

10200220121 is a wasteful number, since it uses less digits than its factorization.

10200220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207752.

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

Adding to 10200220121 its reverse (12102200201), we get a palindrome (22302420322).

The spelling of 10200220121 in words is "ten billion, two hundred million, two hundred twenty thousand, one hundred twenty-one".