101122121099 has 4 divisors (see below), whose sum is σ = 101651556480. Its totient is φ = 100592685720.

The previous prime is 101122121053. The next prime is 101122121131. The reversal of 101122121099 is 990121221101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990121221101 = 157 ⋅6306504593.

It is a cyclic number.

It is not a de Polignac number, because 101122121099 - 2⁸ = 101122120843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101122121699) 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, 264717404 + ... + 264717785.

It is an arithmetic number, because the mean of its divisors is an integer number (25412889120).

Almost surely, 2^101122121099 is an apocalyptic number.

101122121099 is a deficient number, since it is larger than the sum of its proper divisors (529435381).

101122121099 is an equidigital number, since it uses as much as digits as its factorization.

101122121099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529435380.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 101122121099 in words is "one hundred one billion, one hundred twenty-two million, one hundred twenty-one thousand, ninety-nine".