120100221011121 has 32 divisors (see below), whose sum is σ = 172558439695488. Its totient is φ = 73862052940800.

The previous prime is 120100221011083. The next prime is 120100221011131. The reversal of 120100221011121 is 121110122001021.

It is a happy number.

It is not a de Polignac number, because 120100221011121 - 2⁷ = 120100221010993 is a prime.

It is a super-2 number, since 2×120100221011121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120100221011121.

It is not an unprimeable number, because it can be changed into a prime (120100221011131) 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, 443731785 + ... + 444002361.

It is an arithmetic number, because the mean of its divisors is an integer number (5392451240484).

Almost surely, 2^{120100221011121} is an apocalyptic number.

It is an amenable number.

120100221011121 is a deficient number, since it is larger than the sum of its proper divisors (52458218684367).

120100221011121 is a wasteful number, since it uses less digits than its factorization.

120100221011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277601.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120100221011121 its reverse (121110122001021), we get a palindrome (241210343012142).

The spelling of 120100221011121 in words is "one hundred twenty trillion, one hundred billion, two hundred twenty-one million, eleven thousand, one hundred twenty-one".