201112112120220 has 216 divisors, whose sum is σ = 712163865289968. Its totient is φ = 45804893299200.

The previous prime is 201112112120197. The next prime is 201112112120243. The reversal of 201112112120220 is 22021211211102.

201112112120220 is a `hidden beast` number, since 2 + 0 + 111 + 211 + 2 + 120 + 220 = 666.

It is an interprime number because it is at equal distance from previous prime (201112112120197) and next prime (201112112120243).

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 = 201112112120193 and 201112112120202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 38094226 + ... + 43051065.

It is an arithmetic number, because the mean of its divisors is an integer number (3297054931898).

Almost surely, 2^{201112112120220} is an apocalyptic number.

201112112120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201112112120220 is an abundant number, since it is smaller than the sum of its proper divisors (511051753169748).

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

201112112120220 is a wasteful number, since it uses less digits than its factorization.

201112112120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81145601 (or 81145589 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201112112120220 its reverse (22021211211102), we get a palindrome (223133323331322).

The spelling of 201112112120220 in words is "two hundred one trillion, one hundred twelve billion, one hundred twelve million, one hundred twenty thousand, two hundred twenty".