20000101022121 has 16 divisors (see below), whose sum is σ = 30802294623168. Its totient is φ = 11408257267200.

The previous prime is 20000101022113. The next prime is 20000101022159. The reversal of 20000101022121 is 12122010100002.

It is not a de Polignac number, because 20000101022121 - 2³ = 20000101022113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20000101022097 and 20000101022106.

It is not an unprimeable number, because it can be changed into a prime (20000101022171) 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, 17825401420 + ... + 17825402541.

It is an arithmetic number, because the mean of its divisors is an integer number (1925143413948).

Almost surely, 2^{20000101022121} is an apocalyptic number.

It is an amenable number.

20000101022121 is a deficient number, since it is larger than the sum of its proper divisors (10802193601047).

20000101022121 is a wasteful number, since it uses less digits than its factorization.

20000101022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35650803992.

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

Adding to 20000101022121 its reverse (12122010100002), we get a palindrome (32122111122123).

The spelling of 20000101022121 in words is "twenty trillion, one hundred one million, twenty-two thousand, one hundred twenty-one".