1312000222120 has 32 divisors (see below), whose sum is σ = 3373714857600. Its totient is φ = 449828647488.

The previous prime is 1312000222069. The next prime is 1312000222129. The reversal of 1312000222120 is 212220002131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1312000222094 and 1312000222103.

It is not an unprimeable number, because it can be changed into a prime (1312000222129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2342857260 + ... + 2342857819.

It is an arithmetic number, because the mean of its divisors is an integer number (105428589300).

Almost surely, 2^{1312000222120} is an apocalyptic number.

1312000222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312000222120 is an abundant number, since it is smaller than the sum of its proper divisors (2061714635480).

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

1312000222120 is a wasteful number, since it uses less digits than its factorization.

1312000222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4685715097 (or 4685715093 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1312000222120 its reverse (212220002131), we get a palindrome (1524220224251).

The spelling of 1312000222120 in words is "one trillion, three hundred twelve billion, two hundred twenty-two thousand, one hundred twenty".