10002020222121 has 32 divisors (see below), whose sum is σ = 14207652460800. Its totient is φ = 6237156710400.

The previous prime is 10002020222113. The next prime is 10002020222179. The reversal of 10002020222121 is 12122202020001.

It is not a de Polignac number, because 10002020222121 - 2³ = 10002020222113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10002020222121.

It is not an unprimeable number, because it can be changed into a prime (10002020222101) 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, 4719796 + ... + 6502346.

It is an arithmetic number, because the mean of its divisors is an integer number (443989139400).

Almost surely, 2^{10002020222121} is an apocalyptic number.

It is an amenable number.

10002020222121 is a deficient number, since it is larger than the sum of its proper divisors (4205632238679).

10002020222121 is a wasteful number, since it uses less digits than its factorization.

10002020222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783249.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10002020222121 its reverse (12122202020001), we get a palindrome (22124222242122).

The spelling of 10002020222121 in words is "ten trillion, two billion, twenty million, two hundred twenty-two thousand, one hundred twenty-one".