120221120100 has 72 divisors (see below), whose sum is σ = 348196651488. Its totient is φ = 32026073600.

The previous prime is 120221120099. The next prime is 120221120101. The reversal of 120221120100 is 1021122021.

It is an interprime number because it is at equal distance from previous prime (120221120099) and next prime (120221120101).

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 (120221120101) 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, 88015 + ... + 498185.

It is an arithmetic number, because the mean of its divisors is an integer number (4836064604).

Almost surely, 2^120221120100 is an apocalyptic number.

120221120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120221120100 is an abundant number, since it is smaller than the sum of its proper divisors (227975531388).

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

120221120100 is a wasteful number, since it uses less digits than its factorization.

120221120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411165 (or 411158 counting only the distinct ones).

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

Adding to 120221120100 its reverse (1021122021), we get a palindrome (121242242121).

The spelling of 120221120100 in words is "one hundred twenty billion, two hundred twenty-one million, one hundred twenty thousand, one hundred".