101210222012221 has 4 divisors (see below), whose sum is σ = 115668825156832. Its totient is φ = 86751618867612.

The previous prime is 101210222012213. The next prime is 101210222012243. The reversal of 101210222012221 is 122210222012101.

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 101210222012221 - 2³ = 101210222012213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101210222012621) 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, 7229301572295 + ... + 7229301572308.

It is an arithmetic number, because the mean of its divisors is an integer number (28917206289208).

Almost surely, 2^{101210222012221} is an apocalyptic number.

It is an amenable number.

101210222012221 is a deficient number, since it is larger than the sum of its proper divisors (14458603144611).

101210222012221 is an equidigital number, since it uses as much as digits as its factorization.

101210222012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14458603144610.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 101210222012221 its reverse (122210222012101), we get a palindrome (223420444024322).

The spelling of 101210222012221 in words is "one hundred one trillion, two hundred ten billion, two hundred twenty-two million, twelve thousand, two hundred twenty-one".