101112020001221 has 4 divisors (see below), whose sum is σ = 101176876975200. Its totient is φ = 101047163027244.

The previous prime is 101112020001163. The next prime is 101112020001229. The reversal of 101112020001221 is 122100020211101.

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 a de Polignac number, because none of the positive numbers 2^k-101112020001221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101112020001196 and 101112020001205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101112020001229) 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, 32428484651 + ... + 32428487768.

It is an arithmetic number, because the mean of its divisors is an integer number (25294219243800).

Almost surely, 2^{101112020001221} is an apocalyptic number.

It is an amenable number.

101112020001221 is a deficient number, since it is larger than the sum of its proper divisors (64856973979).

101112020001221 is an equidigital number, since it uses as much as digits as its factorization.

101112020001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64856973978.

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

Adding to 101112020001221 its reverse (122100020211101), we get a palindrome (223212040212322).

The spelling of 101112020001221 in words is "one hundred one trillion, one hundred twelve billion, twenty million, one thousand, two hundred twenty-one".