20222001002121 has 32 divisors (see below), whose sum is σ = 28637226528768. Its totient is φ = 12649032372480.

The previous prime is 20222001002113. The next prime is 20222001002129. The reversal of 20222001002121 is 12120010022202.

It is an interprime number because it is at equal distance from previous prime (20222001002113) and next prime (20222001002129).

It is not a de Polignac number, because 20222001002121 - 2³ = 20222001002113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20222001002121.

It is not an unprimeable number, because it can be changed into a prime (20222001002129) 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, 21169600 + ... + 22104206.

It is an arithmetic number, because the mean of its divisors is an integer number (894913329024).

Almost surely, 2^{20222001002121} is an apocalyptic number.

It is an amenable number.

20222001002121 is a deficient number, since it is larger than the sum of its proper divisors (8415225526647).

20222001002121 is a wasteful number, since it uses less digits than its factorization.

20222001002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935941.

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

Adding to 20222001002121 its reverse (12120010022202), we get a palindrome (32342011024323).

The spelling of 20222001002121 in words is "twenty trillion, two hundred twenty-two billion, one million, two thousand, one hundred twenty-one".