22020200121 has 16 divisors (see below), whose sum is σ = 29872367360. Its totient is φ = 14425568640.

The previous prime is 22020200117. The next prime is 22020200123. The reversal of 22020200121 is 12100202022.

It is not a de Polignac number, because 22020200121 - 2² = 22020200117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22020200097 and 22020200106.

It is not an unprimeable number, because it can be changed into a prime (22020200123) 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, 126166 + ... + 244863.

It is an arithmetic number, because the mean of its divisors is an integer number (1867022960).

Almost surely, 2^22020200121 is an apocalyptic number.

It is an amenable number.

22020200121 is a deficient number, since it is larger than the sum of its proper divisors (7852167239).

22020200121 is a wasteful number, since it uses less digits than its factorization.

22020200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371376.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22020200121 its reverse (12100202022), we get a palindrome (34120402143).

It can be divided in two parts, 220202001 and 21, that added together give a palindrome (220202022).

The spelling of 22020200121 in words is "twenty-two billion, twenty million, two hundred thousand, one hundred twenty-one".