120100211121100 has 36 divisors (see below), whose sum is σ = 297848523582064. Its totient is φ = 41177215241280.

The previous prime is 120100211121089. The next prime is 120100211121167. The reversal of 120100211121100 is 1121112001021.

It is a happy number.

It is a super-2 number, since 2×120100211121100² (a number of 29 digits) contains 22 as substring.

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, 85785864387 + ... + 85785865786.

Almost surely, 2^{120100211121100} is an apocalyptic number.

120100211121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120100211121100 is an abundant number, since it is smaller than the sum of its proper divisors (177748312460964).

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

120100211121100 is a wasteful number, since it uses less digits than its factorization.

120100211121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171571730194 (or 171571730187 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 120100211121100 its reverse (1121112001021), we get a palindrome (121221323122121).

The spelling of 120100211121100 in words is "one hundred twenty trillion, one hundred billion, two hundred eleven million, one hundred twenty-one thousand, one hundred".