10120221221 has 8 divisors (see below), whose sum is σ = 11043726624. Its totient is φ = 9197296720.

The previous prime is 10120221197. The next prime is 10120221229. The reversal of 10120221221 is 12212202101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10120221221 - 2¹⁴ = 10120204837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10120221196 and 10120221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120221229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108386 + ... + 178851.

It is an arithmetic number, because the mean of its divisors is an integer number (1380465828).

Almost surely, 2^10120221221 is an apocalyptic number.

10120221221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10120221221 is a deficient number, since it is larger than the sum of its proper divisors (923505403).

10120221221 is a wasteful number, since it uses less digits than its factorization.

10120221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290451.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10120221221 its reverse (12212202101), we get a palindrome (22332423322).

The spelling of 10120221221 in words is "ten billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty-one".