122001221101 has 4 divisors (see below), whose sum is σ = 122002375104. Its totient is φ = 122000067100.

The previous prime is 122001221077. The next prime is 122001221117. The reversal of 122001221101 is 101122100221.

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 a cyclic number.

It is not a de Polignac number, because 122001221101 - 2³³ = 113411286509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001221201) 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, 400405 + ... + 635866.

It is an arithmetic number, because the mean of its divisors is an integer number (30500593776).

Almost surely, 2^122001221101 is an apocalyptic number.

It is an amenable number.

122001221101 is a deficient number, since it is larger than the sum of its proper divisors (1154003).

122001221101 is a wasteful number, since it uses less digits than its factorization.

122001221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154002.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122001221101 its reverse (101122100221), we get a palindrome (223123321322).

The spelling of 122001221101 in words is "one hundred twenty-two billion, one million, two hundred twenty-one thousand, one hundred one".