22312300001220 has 72 divisors (see below), whose sum is σ = 69120657051264. Its totient is φ = 5823352054848.

The previous prime is 22312300001161. The next prime is 22312300001231. The reversal of 22312300001220 is 2210000321322.

22312300001220 is a `hidden beast` number, since 22 + 312 + 300 + 0 + 0 + 12 + 20 = 666.

It is a super-3 number, since 3×22312300001220³ (a number of 41 digits) contains 333 as substring.

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 = 22312300001193 and 22312300001202.

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, 1318685394 + ... + 1318702313.

It is an arithmetic number, because the mean of its divisors is an integer number (960009125712).

Almost surely, 2^{22312300001220} is an apocalyptic number.

22312300001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22312300001220 is an abundant number, since it is smaller than the sum of its proper divisors (46808357050044).

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

22312300001220 is a wasteful number, since it uses less digits than its factorization.

22312300001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637387769 (or 2637387764 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22312300001220 its reverse (2210000321322), we get a palindrome (24522300322542).

The spelling of 22312300001220 in words is "twenty-two trillion, three hundred twelve billion, three hundred million, one thousand, two hundred twenty".