101120012221 has 4 divisors (see below), whose sum is σ = 107068248252. Its totient is φ = 95171776192.

The previous prime is 101120012219. The next prime is 101120012239. The reversal of 101120012221 is 122210021101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54668986596 + 46451025625 = 233814^2 + 215525^2 .

It is not a de Polignac number, because 101120012221 - 2¹ = 101120012219 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 (101120012261) 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, 2974117990 + ... + 2974118023.

It is an arithmetic number, because the mean of its divisors is an integer number (26767062063).

Almost surely, 2^101120012221 is an apocalyptic number.

It is an amenable number.

101120012221 is a deficient number, since it is larger than the sum of its proper divisors (5948236031).

101120012221 is an equidigital number, since it uses as much as digits as its factorization.

101120012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5948236030.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101120012221 its reverse (122210021101), we get a palindrome (223330033322).

The spelling of 101120012221 in words is "one hundred one billion, one hundred twenty million, twelve thousand, two hundred twenty-one".