111121222101090 has 16 divisors (see below), whose sum is σ = 266690933042688. Its totient is φ = 29632325893616.

The previous prime is 111121222101023. The next prime is 111121222101091. The reversal of 111121222101090 is 90101222121111.

It is a self number, because there is not a number n which added to its sum of digits gives 111121222101090.

It is not an unprimeable number, because it can be changed into a prime (111121222101091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1852020368322 + ... + 1852020368381.

It is an arithmetic number, because the mean of its divisors is an integer number (16668183315168).

Almost surely, 2^{111121222101090} is an apocalyptic number.

111121222101090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111121222101090 is an abundant number, since it is smaller than the sum of its proper divisors (155569710941598).

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

111121222101090 is a wasteful number, since it uses less digits than its factorization.

111121222101090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3704040736713.

The product of its (nonzero) digits is 144, while the sum is 24.

The spelling of 111121222101090 in words is "one hundred eleven trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred one thousand, ninety".