220120222212 has 144 divisors (see below), whose sum is σ = 635097310848. Its totient is φ = 63630927360.

The previous prime is 220120222159. The next prime is 220120222229. The reversal of 220120222212 is 212222021022.

220120222212 is a `hidden beast` number, since 220 + 12 + 0 + 222 + 212 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3364888 + ... + 3429680.

It is an arithmetic number, because the mean of its divisors is an integer number (4410397992).

Almost surely, 2^220120222212 is an apocalyptic number.

220120222212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220120222212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317548655424).

220120222212 is an abundant number, since it is smaller than the sum of its proper divisors (414977088636).

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

220120222212 is a wasteful number, since it uses less digits than its factorization.

220120222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65210 (or 65205 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 220120222212 its reverse (212222021022), we get a palindrome (432342243234).

The spelling of 220120222212 in words is "two hundred twenty billion, one hundred twenty million, two hundred twenty-two thousand, two hundred twelve".