201002212021121 has 16 divisors (see below), whose sum is σ = 237638591337600. Its totient is φ = 166346302512768.

The previous prime is 201002212021097. The next prime is 201002212021123. The reversal of 201002212021121 is 121120212200102.

It is a de Polignac number, because none of the positive numbers 2^k-201002212021121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201002212021121.

It is not an unprimeable number, because it can be changed into a prime (201002212021123) 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, 140833541 + ... + 142253613.

It is an arithmetic number, because the mean of its divisors is an integer number (14852411958600).

Almost surely, 2^{201002212021121} is an apocalyptic number.

It is an amenable number.

201002212021121 is a deficient number, since it is larger than the sum of its proper divisors (36636379316479).

201002212021121 is a wasteful number, since it uses less digits than its factorization.

201002212021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117368.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201002212021121 its reverse (121120212200102), we get a palindrome (322122424221223).

The spelling of 201002212021121 in words is "two hundred one trillion, two billion, two hundred twelve million, twenty-one thousand, one hundred twenty-one".