112212122221101 has 16 divisors (see below), whose sum is σ = 171978281460864. Its totient is φ = 63750569847744.

The previous prime is 112212122221081. The next prime is 112212122221139. The reversal of 112212122221101 is 101122221212211.

It is not a de Polignac number, because 112212122221101 - 2⁹ = 112212122220589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112212122225101) 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, 15443448366 + ... + 15443455631.

It is an arithmetic number, because the mean of its divisors is an integer number (10748642591304).

Almost surely, 2^{112212122221101} is an apocalyptic number.

It is an amenable number.

112212122221101 is a deficient number, since it is larger than the sum of its proper divisors (59766159239763).

112212122221101 is a wasteful number, since it uses less digits than its factorization.

112212122221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30886904180.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 112212122221101 its reverse (101122221212211), we get a palindrome (213334343433312).

The spelling of 112212122221101 in words is "one hundred twelve trillion, two hundred twelve billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred one".