201002021120121 has 16 divisors (see below), whose sum is σ = 288683043164544. Its totient is φ = 123665798703744.

The previous prime is 201002021120119. The next prime is 201002021120141. The reversal of 201002021120121 is 121021120200102.

It is not a de Polignac number, because 201002021120121 - 2¹ = 201002021120119 is a prime.

It is a super-2 number, since 2×201002021120121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201002021120121.

It is not an unprimeable number, because it can be changed into a prime (201002021120141) 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, 578006341 + ... + 578353986.

It is an arithmetic number, because the mean of its divisors is an integer number (18042690197784).

Almost surely, 2^{201002021120121} is an apocalyptic number.

It is an amenable number.

201002021120121 is a deficient number, since it is larger than the sum of its proper divisors (87681022044423).

201002021120121 is a wasteful number, since it uses less digits than its factorization.

201002021120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156364800.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201002021120121 its reverse (121021120200102), we get a palindrome (322023141320223).

The spelling of 201002021120121 in words is "two hundred one trillion, two billion, twenty-one million, one hundred twenty thousand, one hundred twenty-one".