1011222210112 has 56 divisors (see below), whose sum is σ = 2060618944032. Its totient is φ = 492094848000.

The previous prime is 1011222210109. The next prime is 1011222210137. The reversal of 1011222210112 is 2110122221101.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119487 + ... + 1427137.

Almost surely, 2^{1011222210112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011222210112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1030309472016).

1011222210112 is an abundant number, since it is smaller than the sum of its proper divisors (1049396733920).

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

1011222210112 is a wasteful number, since it uses less digits than its factorization.

1011222210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307987 (or 1307977 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1011222210112 its reverse (2110122221101), we get a palindrome (3121344431213).

The spelling of 1011222210112 in words is "one trillion, eleven billion, two hundred twenty-two million, two hundred ten thousand, one hundred twelve".