201021020220202 has 128 divisors (see below), whose sum is σ = 407568548620800. Its totient is φ = 72075255791616.

The previous prime is 201021020220157. The next prime is 201021020220203. The reversal of 201021020220202 is 202022020120102.

201021020220202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201021020220202² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201021020220203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31050498 + ... + 36961810.

It is an arithmetic number, because the mean of its divisors is an integer number (3184129286100).

Almost surely, 2^{201021020220202} is an apocalyptic number.

201021020220202 is an abundant number, since it is smaller than the sum of its proper divisors (206547528400598).

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

201021020220202 is a wasteful number, since it uses less digits than its factorization.

201021020220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5911760.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 201021020220202 its reverse (202022020120102), we get a palindrome (403043040340304).

The spelling of 201021020220202 in words is "two hundred one trillion, twenty-one billion, twenty million, two hundred twenty thousand, two hundred two".