121222100201 has 4 divisors (see below), whose sum is σ = 121225203792. Its totient is φ = 121218996612.

The previous prime is 121222100191. The next prime is 121222100221. The reversal of 121222100201 is 102001222121.

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 121222100201 - 2³⁰ = 120148358377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121222100221) 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, 1492451 + ... + 1571576.

It is an arithmetic number, because the mean of its divisors is an integer number (30306300948).

Almost surely, 2^121222100201 is an apocalyptic number.

It is an amenable number.

121222100201 is a deficient number, since it is larger than the sum of its proper divisors (3103591).

121222100201 is an equidigital number, since it uses as much as digits as its factorization.

121222100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103590.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121222100201 its reverse (102001222121), we get a palindrome (223223322322).

The spelling of 121222100201 in words is "one hundred twenty-one billion, two hundred twenty-two million, one hundred thousand, two hundred one".