121122220101 has 8 divisors (see below), whose sum is σ = 161502539904. Its totient is φ = 80745023520.

The previous prime is 121122220073. The next prime is 121122220147. The reversal of 121122220101 is 101022221121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121122220101 - 2²⁹ = 120585349189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122220151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688765 + ... + 846546.

It is an arithmetic number, because the mean of its divisors is an integer number (20187817488).

Almost surely, 2^121122220101 is an apocalyptic number.

It is an amenable number.

121122220101 is a deficient number, since it is larger than the sum of its proper divisors (40380319803).

121122220101 is a wasteful number, since it uses less digits than its factorization.

121122220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561611.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121122220101 its reverse (101022221121), we get a palindrome (222144441222).

The spelling of 121122220101 in words is "one hundred twenty-one billion, one hundred twenty-two million, two hundred twenty thousand, one hundred one".