101020011222121 has 4 divisors (see below), whose sum is σ = 101020454623312. Its totient is φ = 101019567820932.

The previous prime is 101020011222071. The next prime is 101020011222131. The reversal of 101020011222121 is 121222110020101.

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 101020011222121 - 2²⁹ = 101019474351209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101020011222095 and 101020011222104.

It is not an unprimeable number, because it can be changed into a prime (101020011222131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221358675 + ... + 221814568.

It is an arithmetic number, because the mean of its divisors is an integer number (25255113655828).

Almost surely, 2^{101020011222121} is an apocalyptic number.

It is an amenable number.

101020011222121 is a deficient number, since it is larger than the sum of its proper divisors (443401191).

101020011222121 is an equidigital number, since it uses as much as digits as its factorization.

101020011222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443401190.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101020011222121 its reverse (121222110020101), we get a palindrome (222242121242222).

The spelling of 101020011222121 in words is "one hundred one trillion, twenty billion, eleven million, two hundred twenty-two thousand, one hundred twenty-one".