101102121021221 has 4 divisors (see below), whose sum is σ = 105497865413472. Its totient is φ = 96706376628972.

The previous prime is 101102121021193. The next prime is 101102121021233. The reversal of 101102121021221 is 122120121201101.

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 101102121021221 - 2⁶ = 101102121021157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101102121021221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101102121021821) 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, 2197872196091 + ... + 2197872196136.

It is an arithmetic number, because the mean of its divisors is an integer number (26374466353368).

Almost surely, 2^{101102121021221} is an apocalyptic number.

It is an amenable number.

101102121021221 is a deficient number, since it is larger than the sum of its proper divisors (4395744392251).

101102121021221 is an equidigital number, since it uses as much as digits as its factorization.

101102121021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395744392250.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 101102121021221 its reverse (122120121201101), we get a palindrome (223222242222322).

The spelling of 101102121021221 in words is "one hundred one trillion, one hundred two billion, one hundred twenty-one million, twenty-one thousand, two hundred twenty-one".