101112021001 has 4 divisors (see below), whose sum is σ = 101591225104. Its totient is φ = 100632816900.

The previous prime is 101112020981. The next prime is 101112021029. The reversal of 101112021001 is 100120211101.

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: 100120211101 = 19427 ⋅5153663.

It is a cyclic number.

It is not a de Polignac number, because 101112021001 - 2⁵ = 101112020969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101112021041) 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, 239601735 + ... + 239602156.

It is an arithmetic number, because the mean of its divisors is an integer number (25397806276).

Almost surely, 2^101112021001 is an apocalyptic number.

It is an amenable number.

101112021001 is a deficient number, since it is larger than the sum of its proper divisors (479204103).

101112021001 is an equidigital number, since it uses as much as digits as its factorization.

101112021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479204102.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 101112021001 its reverse (100120211101), we get a palindrome (201232232102).

The spelling of 101112021001 in words is "one hundred one billion, one hundred twelve million, twenty-one thousand, one".