101220221222201 has 4 divisors (see below), whose sum is σ = 101220241421904. Its totient is φ = 101220201022500.

The previous prime is 101220221222191. The next prime is 101220221222203. The reversal of 101220221222201 is 102222122022101.

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 101220221222201 - 2³⁰ = 101219147480377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101220221222203) 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, 3719426 + ... + 14706276.

It is an arithmetic number, because the mean of its divisors is an integer number (25305060355476).

Almost surely, 2^{101220221222201} is an apocalyptic number.

It is an amenable number.

101220221222201 is a deficient number, since it is larger than the sum of its proper divisors (20199703).

101220221222201 is an equidigital number, since it uses as much as digits as its factorization.

101220221222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20199702.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 101220221222201 its reverse (102222122022101), we get a palindrome (203442343244302).

The spelling of 101220221222201 in words is "one hundred one trillion, two hundred twenty billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred one".