101120211221 has 4 divisors (see below), whose sum is σ = 102065260032. Its totient is φ = 100175162412.

The previous prime is 101120211211. The next prime is 101120211253. The reversal of 101120211221 is 122112021101.

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 101120211221 - 2¹⁴ = 101120194837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101120211196 and 101120211205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101120211211) 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, 472524245 + ... + 472524458.

It is an arithmetic number, because the mean of its divisors is an integer number (25516315008).

Almost surely, 2^101120211221 is an apocalyptic number.

It is an amenable number.

101120211221 is a deficient number, since it is larger than the sum of its proper divisors (945048811).

101120211221 is an equidigital number, since it uses as much as digits as its factorization.

101120211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945048810.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101120211221 its reverse (122112021101), we get a palindrome (223232232322).

The spelling of 101120211221 in words is "one hundred one billion, one hundred twenty million, two hundred eleven thousand, two hundred twenty-one".