201120122212220 has 48 divisors (see below), whose sum is σ = 423257756140800. Its totient is φ = 80275591656960.

The previous prime is 201120122212169. The next prime is 201120122212271. The reversal of 201120122212220 is 22212221021102.

It is an interprime number because it is at equal distance from previous prime (201120122212169) and next prime (201120122212271).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 201120122212192 and 201120122212201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172712330 + ... + 173872910.

It is an arithmetic number, because the mean of its divisors is an integer number (8817869919600).

Almost surely, 2^{201120122212220} is an apocalyptic number.

201120122212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201120122212220 is an abundant number, since it is smaller than the sum of its proper divisors (222137633928580).

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

201120122212220 is a wasteful number, since it uses less digits than its factorization.

201120122212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179158 (or 1179156 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 201120122212220 its reverse (22212221021102), we get a palindrome (223332343233322).

The spelling of 201120122212220 in words is "two hundred one trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twelve thousand, two hundred twenty".