202122122001 has 16 divisors (see below), whose sum is σ = 270483067008. Its totient is φ = 134255404800.

The previous prime is 202122121991. The next prime is 202122122017. The reversal of 202122122001 is 100221221202.

It is not a de Polignac number, because 202122122001 - 2¹⁴ = 202122105617 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (202122122051) 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, 952956 + ... + 1145586.

It is an arithmetic number, because the mean of its divisors is an integer number (16905191688).

Almost surely, 2^202122122001 is an apocalyptic number.

It is an amenable number.

202122122001 is a deficient number, since it is larger than the sum of its proper divisors (68360945007).

202122122001 is a wasteful number, since it uses less digits than its factorization.

202122122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193912.

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

Adding to 202122122001 its reverse (100221221202), we get a palindrome (302343343203).

The spelling of 202122122001 in words is "two hundred two billion, one hundred twenty-two million, one hundred twenty-two thousand, one".