102101011200221 has 4 divisors (see below), whose sum is σ = 111382921309344. Its totient is φ = 92819101091100.

The previous prime is 102101011200173. The next prime is 102101011200233. The reversal of 102101011200221 is 122002110101201.

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 102101011200221 - 2²⁶ = 102100944091357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102101011200196 and 102101011200205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101011200271) 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, 4640955054545 + ... + 4640955054566.

It is an arithmetic number, because the mean of its divisors is an integer number (27845730327336).

Almost surely, 2^{102101011200221} is an apocalyptic number.

102101011200221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102101011200221 is a deficient number, since it is larger than the sum of its proper divisors (9281910109123).

102101011200221 is an equidigital number, since it uses as much as digits as its factorization.

102101011200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9281910109122.

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

Adding to 102101011200221 its reverse (122002110101201), we get a palindrome (224103121301422).

The spelling of 102101011200221 in words is "one hundred two trillion, one hundred one billion, eleven million, two hundred thousand, two hundred twenty-one".