201002022122121 has 48 divisors (see below), whose sum is σ = 324965177140032. Its totient is φ = 118667398550400.

The previous prime is 201002022122117. The next prime is 201002022122123. The reversal of 201002022122121 is 121221220200102.

It is a happy number.

201002022122121 is a `hidden beast` number, since 201 + 0 + 0 + 2 + 0 + 221 + 221 + 21 = 666.

201002022122121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201002022122121 - 2² = 201002022122117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201002022122094 and 201002022122103.

It is not an unprimeable number, because it can be changed into a prime (201002022122123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61705470 + ... + 64881191.

It is an arithmetic number, because the mean of its divisors is an integer number (6770107857084).

Almost surely, 2^{201002022122121} is an apocalyptic number.

It is an amenable number.

201002022122121 is a deficient number, since it is larger than the sum of its proper divisors (123963155017911).

201002022122121 is a wasteful number, since it uses less digits than its factorization.

201002022122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126587094 (or 126587091 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 201002022122121 its reverse (121221220200102), we get a palindrome (322223242322223).

The spelling of 201002022122121 in words is "two hundred one trillion, two billion, twenty-two million, one hundred twenty-two thousand, one hundred twenty-one".