101020011220221 has 4 divisors (see below), whose sum is σ = 134693348293632. Its totient is φ = 67346674146812.

The previous prime is 101020011220159. The next prime is 101020011220223. The reversal of 101020011220221 is 122022110020101.

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 101020011220221 - 2²³ = 101020002831613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101020011220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101020011220223) 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, 16836668536701 + ... + 16836668536706.

It is an arithmetic number, because the mean of its divisors is an integer number (33673337073408).

Almost surely, 2^{101020011220221} is an apocalyptic number.

It is an amenable number.

101020011220221 is a deficient number, since it is larger than the sum of its proper divisors (33673337073411).

101020011220221 is an equidigital number, since it uses as much as digits as its factorization.

101020011220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33673337073410.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 101020011220221 its reverse (122022110020101), we get a palindrome (223042121240322).

The spelling of 101020011220221 in words is "one hundred one trillion, twenty billion, eleven million, two hundred twenty thousand, two hundred twenty-one".