122112122221101 has 4 divisors (see below), whose sum is σ = 162816162961472. Its totient is φ = 81408081480732.

The previous prime is 122112122221093. The next prime is 122112122221123. The reversal of 122112122221101 is 101122221211221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 122112122221101 - 2³ = 122112122221093 is a prime.

It is a super-2 number, since 2×122112122221101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122112122221151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20352020370181 + ... + 20352020370186.

It is an arithmetic number, because the mean of its divisors is an integer number (40704040740368).

Almost surely, 2^{122112122221101} is an apocalyptic number.

It is an amenable number.

122112122221101 is a deficient number, since it is larger than the sum of its proper divisors (40704040740371).

122112122221101 is an equidigital number, since it uses as much as digits as its factorization.

122112122221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40704040740370.

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

Adding to 122112122221101 its reverse (101122221211221), we get a palindrome (223234343432322).

The spelling of 122112122221101 in words is "one hundred twenty-two trillion, one hundred twelve billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred one".