201120122021020 has 24 divisors (see below), whose sum is σ = 427698487339200. Its totient is φ = 79429719076032.

The previous prime is 201120122020963. The next prime is 201120122021033. The reversal of 201120122021020 is 20120221021102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201120122020985 and 201120122021003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63645606655 + ... + 63645609814.

It is an arithmetic number, because the mean of its divisors is an integer number (17820770305800).

Almost surely, 2^{201120122021020} is an apocalyptic number.

201120122021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201120122021020 is an abundant number, since it is smaller than the sum of its proper divisors (226578365318180).

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

201120122021020 is a wasteful number, since it uses less digits than its factorization.

201120122021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127291216557 (or 127291216555 counting only the distinct ones).

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

Adding to 201120122021020 its reverse (20120221021102), we get a palindrome (221240343042122).

The spelling of 201120122021020 in words is "two hundred one trillion, one hundred twenty billion, one hundred twenty-two million, twenty-one thousand, twenty".