120012200121 has 32 divisors (see below), whose sum is σ = 175249501056. Its totient is φ = 72449280000.

The previous prime is 120012200117. The next prime is 120012200159. The reversal of 120012200121 is 121002210021.

It is not a de Polignac number, because 120012200121 - 2² = 120012200117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120012200097 and 120012200106.

It is not an unprimeable number, because it can be changed into a prime (120012200101) 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, 9057061 + ... + 9070301.

It is an arithmetic number, because the mean of its divisors is an integer number (5476546908).

Almost surely, 2^120012200121 is an apocalyptic number.

120012200121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120012200121 is a deficient number, since it is larger than the sum of its proper divisors (55237300935).

120012200121 is a wasteful number, since it uses less digits than its factorization.

120012200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14313.

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

Adding to 120012200121 its reverse (121002210021), we get a palindrome (241014410142).

It can be divided in two parts, 12001 and 2200121, that added together give a palindrome (2212122).

The spelling of 120012200121 in words is "one hundred twenty billion, twelve million, two hundred thousand, one hundred twenty-one".