2212330021220 has 48 divisors (see below), whose sum is σ = 5077975142016. Its totient is φ = 802939488000.

The previous prime is 2212330021201. The next prime is 2212330021247. The reversal of 2212330021220 is 221200332122.

It is a happy number.

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 = 2212330021192 and 2212330021201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9536096 + ... + 9765335.

It is an arithmetic number, because the mean of its divisors is an integer number (105791148792).

Almost surely, 2^{2212330021220} is an apocalyptic number.

2212330021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212330021220 is an abundant number, since it is smaller than the sum of its proper divisors (2865645120796).

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

2212330021220 is a wasteful number, since it uses less digits than its factorization.

2212330021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19301972 (or 19301970 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2212330021220 its reverse (221200332122), we get a palindrome (2433530353342).

The spelling of 2212330021220 in words is "two trillion, two hundred twelve billion, three hundred thirty million, twenty-one thousand, two hundred twenty".