120111311233221 has 32 divisors (see below), whose sum is σ = 211410589068288. Its totient is φ = 58725163626240.

The previous prime is 120111311233219. The next prime is 120111311233229. The reversal of 120111311233221 is 122332113111021.

It is not a de Polignac number, because 120111311233221 - 2¹ = 120111311233219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120111311233191 and 120111311233200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120111311233229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15293007435 + ... + 15293015288.

It is an arithmetic number, because the mean of its divisors is an integer number (6606580908384).

Almost surely, 2^{120111311233221} is an apocalyptic number.

120111311233221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120111311233221 is a deficient number, since it is larger than the sum of its proper divisors (91299277835067).

120111311233221 is a wasteful number, since it uses less digits than its factorization.

120111311233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30586022761.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 120111311233221 its reverse (122332113111021), we get a palindrome (242443424344242).

The spelling of 120111311233221 in words is "one hundred twenty trillion, one hundred eleven billion, three hundred eleven million, two hundred thirty-three thousand, two hundred twenty-one".