120111222100 has 36 divisors (see below), whose sum is σ = 260656947964. Its totient is φ = 48041614080.

The previous prime is 120111222089. The next prime is 120111222151. The reversal of 120111222100 is 1222111021.

It can be written as a sum of positive squares in 6 ways, for example, as 17811037764 + 102300184336 = 133458^2 + 319844^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2620984 + ... + 2666416.

Almost surely, 2^120111222100 is an apocalyptic number.

120111222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120111222100 is an abundant number, since it is smaller than the sum of its proper divisors (140545725864).

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

120111222100 is a wasteful number, since it uses less digits than its factorization.

120111222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71884 (or 71877 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120111222100 its reverse (1222111021), we get a palindrome (121333333121).

The spelling of 120111222100 in words is "one hundred twenty billion, one hundred eleven million, two hundred twenty-two thousand, one hundred".