120221111231 has 8 divisors (see below), whose sum is σ = 129559510080. Its totient is φ = 110895658272.

The previous prime is 120221111189. The next prime is 120221111237. The reversal of 120221111231 is 132111122021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120221111231 is a prime.

It is a super-2 number, since 2×120221111231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221111237) 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, 3217175 + ... + 3254328.

It is an arithmetic number, because the mean of its divisors is an integer number (16194938760).

Almost surely, 2^120221111231 is an apocalyptic number.

120221111231 is a deficient number, since it is larger than the sum of its proper divisors (9338398849).

120221111231 is a wasteful number, since it uses less digits than its factorization.

120221111231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6472945.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 120221111231 its reverse (132111122021), we get a palindrome (252332233252).

The spelling of 120221111231 in words is "one hundred twenty billion, two hundred twenty-one million, one hundred eleven thousand, two hundred thirty-one".