20000010220121 has 16 divisors (see below), whose sum is σ = 20901149491200. Its totient is φ = 19118713814928.

The previous prime is 20000010220103. The next prime is 20000010220163. The reversal of 20000010220121 is 12102201000002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20000010220121 - 2¹⁰ = 20000010219097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000010220921) 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, 83102600 + ... + 83342918.

It is an arithmetic number, because the mean of its divisors is an integer number (1306321843200).

Almost surely, 2^{20000010220121} is an apocalyptic number.

It is an amenable number.

20000010220121 is a deficient number, since it is larger than the sum of its proper divisors (901139271079).

20000010220121 is a wasteful number, since it uses less digits than its factorization.

20000010220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281588.

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

Adding to 20000010220121 its reverse (12102201000002), we get a palindrome (32102211220123).

The spelling of 20000010220121 in words is "twenty trillion, ten million, two hundred twenty thousand, one hundred twenty-one".