2212022021220 has 72 divisors (see below), whose sum is σ = 7319781967680. Its totient is φ = 536247762240.

The previous prime is 2212022021207. The next prime is 2212022021233. The reversal of 2212022021220 is 221202202122.

2212022021220 is a `hidden beast` number, since 2 + 212 + 0 + 220 + 212 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (2212022021207) and next prime (2212022021233).

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 = 2212022021193 and 2212022021202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 558589440 + ... + 558593399.

It is an arithmetic number, because the mean of its divisors is an integer number (101663638440).

Almost surely, 2^{2212022021220} is an apocalyptic number.

2212022021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212022021220 is an abundant number, since it is smaller than the sum of its proper divisors (5107759946460).

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

2212022021220 is a wasteful number, since it uses less digits than its factorization.

2212022021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117182865 (or 1117182860 counting only the distinct ones).

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

Adding to 2212022021220 its reverse (221202202122), we get a palindrome (2433224223342).

It can be divided in two parts, 221202 and 2021220, that added together give a palindrome (2242422).

The spelling of 2212022021220 in words is "two trillion, two hundred twelve billion, twenty-two million, twenty-one thousand, two hundred twenty".