120220000121100 has 72 divisors (see below), whose sum is σ = 379458036756288. Its totient is φ = 29144242452800.

The previous prime is 120220000121099. The next prime is 120220000121101. The reversal of 120220000121100 is 1121000022021.

It is an interprime number because it is at equal distance from previous prime (120220000121099) and next prime (120220000121101).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (120220000121101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18215148234 + ... + 18215154833.

It is an arithmetic number, because the mean of its divisors is an integer number (5270250510504).

Almost surely, 2^{120220000121100} is an apocalyptic number.

120220000121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120220000121100 is an abundant number, since it is smaller than the sum of its proper divisors (259238036635188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120220000121100 is a wasteful number, since it uses less digits than its factorization.

120220000121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36430303095 (or 36430303088 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120220000121100 its reverse (1121000022021), we get a palindrome (121341000143121).

The spelling of 120220000121100 in words is "one hundred twenty trillion, two hundred twenty billion, one hundred twenty-one thousand, one hundred".