10100112221021 has 4 divisors (see below), whose sum is σ = 10100354756544. Its totient is φ = 10099869685500.

The previous prime is 10100112220997. The next prime is 10100112221029. The reversal of 10100112221021 is 12012221100101.

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 10100112221021 - 2¹⁰ = 10100112219997 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 = 10100112220987 and 10100112221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100112221029) 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, 121205285 + ... + 121288586.

It is an arithmetic number, because the mean of its divisors is an integer number (2525088689136).

Almost surely, 2^{10100112221021} is an apocalyptic number.

It is an amenable number.

10100112221021 is a deficient number, since it is larger than the sum of its proper divisors (242535523).

10100112221021 is an equidigital number, since it uses as much as digits as its factorization.

10100112221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242535522.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10100112221021 its reverse (12012221100101), we get a palindrome (22112333321122).

The spelling of 10100112221021 in words is "ten trillion, one hundred billion, one hundred twelve million, two hundred twenty-one thousand, twenty-one".