20200122002221 has 16 divisors (see below), whose sum is σ = 23110845350400. Its totient is φ = 17295650010288.

The previous prime is 20200122002183. The next prime is 20200122002227. The reversal of 20200122002221 is 12220022100202.

It is a cyclic number.

It is not a de Polignac number, because 20200122002221 - 2¹⁵ = 20200121969453 is a prime.

It is a super-2 number, since 2×20200122002221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20200122002195 and 20200122002204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200122002227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73039426 + ... + 73315468.

It is an arithmetic number, because the mean of its divisors is an integer number (1444427834400).

Almost surely, 2^{20200122002221} is an apocalyptic number.

It is an amenable number.

20200122002221 is a deficient number, since it is larger than the sum of its proper divisors (2910723348179).

20200122002221 is a wasteful number, since it uses less digits than its factorization.

20200122002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287328.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20200122002221 its reverse (12220022100202), we get a palindrome (32420144102423).

The spelling of 20200122002221 in words is "twenty trillion, two hundred billion, one hundred twenty-two million, two thousand, two hundred twenty-one".