202101122012220 has 36 divisors (see below), whose sum is σ = 613040070104280. Its totient is φ = 53893632536544.

The previous prime is 202101122012219. The next prime is 202101122012353. The reversal of 202101122012220 is 22210221101202.

It is a happy number.

202101122012220 is a `hidden beast` number, since 2 + 0 + 210 + 1 + 1 + 220 + 12 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 202101122012193 and 202101122012202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 561392005410 + ... + 561392005769.

It is an arithmetic number, because the mean of its divisors is an integer number (17028890836230).

Almost surely, 2^{202101122012220} is an apocalyptic number.

202101122012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202101122012220 is an abundant number, since it is smaller than the sum of its proper divisors (410938948092060).

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

202101122012220 is a wasteful number, since it uses less digits than its factorization.

202101122012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122784011194 (or 1122784011189 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202101122012220 its reverse (22210221101202), we get a palindrome (224311343113422).

The spelling of 202101122012220 in words is "two hundred two trillion, one hundred one billion, one hundred twenty-two million, twelve thousand, two hundred twenty".