1012112222202 has 24 divisors (see below), whose sum is σ = 2199122037684. Its totient is φ = 336415014144.

The previous prime is 1012112222201. The next prime is 1012112222273. The reversal of 1012112222202 is 2022222112101.

It is a happy number.

1012112222202 is a `hidden beast` number, since 10 + 1 + 211 + 222 + 220 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 963791829441 + 48320392761 = 981729^2 + 219819^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1012112222201) 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, 79637353 + ... + 79650060.

Almost surely, 2^{1012112222202} is an apocalyptic number.

1012112222202 is an abundant number, since it is smaller than the sum of its proper divisors (1187009815482).

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

1012112222202 is a wasteful number, since it uses less digits than its factorization.

1012112222202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159287774 (or 159287771 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1012112222202 its reverse (2022222112101), we get a palindrome (3034334334303).

The spelling of 1012112222202 in words is "one trillion, twelve billion, one hundred twelve million, two hundred twenty-two thousand, two hundred two".