1222101011112 has 128 divisors (see below), whose sum is σ = 3274029158400. Its totient is φ = 379030579200.

The previous prime is 1222101011099. The next prime is 1222101011147. The reversal of 1222101011112 is 2111101012221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1222101011091 and 1222101011100.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5688937 + ... + 5899847.

It is an arithmetic number, because the mean of its divisors is an integer number (25578352800).

Almost surely, 2^{1222101011112} is an apocalyptic number.

1222101011112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222101011112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1637014579200).

1222101011112 is an abundant number, since it is smaller than the sum of its proper divisors (2051928147288).

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

1222101011112 is a wasteful number, since it uses less digits than its factorization.

1222101011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211167 (or 211163 counting only the distinct ones).

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

Adding to 1222101011112 its reverse (2111101012221), we get a palindrome (3333202023333).

The spelling of 1222101011112 in words is "one trillion, two hundred twenty-two billion, one hundred one million, eleven thousand, one hundred twelve".