107220121 has 4 divisors (see below), whose sum is σ = 107252352. Its totient is φ = 107187892.

The previous prime is 107220119. The next prime is 107220133. The reversal of 107220121 is 121022701.

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 107220121 - 2¹ = 107220119 is a prime.

It is a super-2 number, since 2×107220121² = 22992308694509282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 107220095 and 107220104.

It is not an unprimeable number, because it can be changed into a prime (107220521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10465 + ... + 17998.

It is an arithmetic number, because the mean of its divisors is an integer number (26813088).

Almost surely, 2^107220121 is an apocalyptic number.

It is an amenable number.

107220121 is a deficient number, since it is larger than the sum of its proper divisors (32231).

107220121 is an equidigital number, since it uses as much as digits as its factorization.

107220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32230.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 107220121 is about 10354.7149164040. The cubic root of 107220121 is about 475.0712668692.

Adding to 107220121 its reverse (121022701), we get a palindrome (228242822).

The spelling of 107220121 in words is "one hundred seven million, two hundred twenty thousand, one hundred twenty-one".