201002212122 has 16 divisors (see below), whose sum is σ = 419482877760. Its totient is φ = 64087661792.

The previous prime is 201002212043. The next prime is 201002212123. The reversal of 201002212122 is 221212200102.

It is not an unprimeable number, because it can be changed into a prime (201002212123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728268747 + ... + 728269022.

It is an arithmetic number, because the mean of its divisors is an integer number (26217679860).

Almost surely, 2^201002212122 is an apocalyptic number.

201002212122 is an abundant number, since it is smaller than the sum of its proper divisors (218480665638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201002212122 is a wasteful number, since it uses less digits than its factorization.

201002212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456537797.

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

Adding to 201002212122 its reverse (221212200102), we get a palindrome (422214412224).

The spelling of 201002212122 in words is "two hundred one billion, two million, two hundred twelve thousand, one hundred twenty-two".