202201110201220 has 36 divisors (see below), whose sum is σ = 459798145867620. Its totient is φ = 74658871457664.

The previous prime is 202201110201203. The next prime is 202201110201229. The reversal of 202201110201220 is 22102011102202.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 99075785357124 + 103125324844096 = 9953682^2 + 10155064^2 .

It is a junction number, because it is equal to n+sod(n) for n = 202201110201194 and 202201110201203.

It is not an unprimeable number, because it can be changed into a prime (202201110201229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29911403455 + ... + 29911410214.

It is an arithmetic number, because the mean of its divisors is an integer number (12772170718545).

Almost surely, 2^{202201110201220} is an apocalyptic number.

202201110201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202201110201220 is an abundant number, since it is smaller than the sum of its proper divisors (257597035666400).

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

202201110201220 is a wasteful number, since it uses less digits than its factorization.

202201110201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59822813704 (or 59822813689 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202201110201220 its reverse (22102011102202), we get a palindrome (224303121303422).

The spelling of 202201110201220 in words is "two hundred two trillion, two hundred one billion, one hundred ten million, two hundred one thousand, two hundred twenty".