1012111220322 has 24 divisors (see below), whose sum is σ = 2252175419676. Its totient is φ = 328252287456.

The previous prime is 1012111220321. The next prime is 1012111220327. The reversal of 1012111220322 is 2230221112101.

1012111220322 is a `hidden beast` number, since 1 + 0 + 12 + 111 + 220 + 322 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 942609916161 + 69501304161 = 970881^2 + 263631^2 .

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 = 1012111220295 and 1012111220304.

It is not an unprimeable number, because it can be changed into a prime (1012111220321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 759842593 + ... + 759843924.

Almost surely, 2^{1012111220322} is an apocalyptic number.

1012111220322 is an abundant number, since it is smaller than the sum of its proper divisors (1240064199354).

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

1012111220322 is a wasteful number, since it uses less digits than its factorization.

1012111220322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1519686562 (or 1519686559 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1012111220322 its reverse (2230221112101), we get a palindrome (3242332332423).

The spelling of 1012111220322 in words is "one trillion, twelve billion, one hundred eleven million, two hundred twenty thousand, three hundred twenty-two".