101202220121 has 4 divisors (see below), whose sum is σ = 105602316672. Its totient is φ = 96802123572.

The previous prime is 101202220117. The next prime is 101202220123. The reversal of 101202220121 is 121022202101.

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, and also an emirpimes, since its reverse is a distinct semiprime: 121022202101 = 2753 ⋅43960117.

It is a cyclic number.

It is not a de Polignac number, because 101202220121 - 2² = 101202220117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101202220096 and 101202220105.

It is not an unprimeable number, because it can be changed into a prime (101202220123) 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, 2200048241 + ... + 2200048286.

It is an arithmetic number, because the mean of its divisors is an integer number (26400579168).

Almost surely, 2^101202220121 is an apocalyptic number.

It is an amenable number.

101202220121 is a deficient number, since it is larger than the sum of its proper divisors (4400096551).

101202220121 is an equidigital number, since it uses as much as digits as its factorization.

101202220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4400096550.

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

Adding to 101202220121 its reverse (121022202101), we get a palindrome (222224422222).

The spelling of 101202220121 in words is "one hundred one billion, two hundred two million, two hundred twenty thousand, one hundred twenty-one".