1011112121202 has 32 divisors (see below), whose sum is σ = 2110305899520. Its totient is φ = 322359304080.

The previous prime is 1011112121137. The next prime is 1011112121207. The reversal of 1011112121202 is 2021212111101.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1011112121207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1610427 + ... + 2148417.

It is an arithmetic number, because the mean of its divisors is an integer number (65947059360).

Almost surely, 2^{1011112121202} is an apocalyptic number.

1011112121202 is an abundant number, since it is smaller than the sum of its proper divisors (1099193778318).

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

1011112121202 is a wasteful number, since it uses less digits than its factorization.

1011112121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551638.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1011112121202 its reverse (2021212111101), we get a palindrome (3032324232303).

The spelling of 1011112121202 in words is "one trillion, eleven billion, one hundred twelve million, one hundred twenty-one thousand, two hundred two".