120200021121 has 8 divisors (see below), whose sum is σ = 160299401920. Its totient is φ = 80116993872.

The previous prime is 120200021107. The next prime is 120200021213. The reversal of 120200021121 is 121120002021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120200021121 - 2¹¹ = 120200019073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120200021097 and 120200021106.

It is not an unprimeable number, because it can be changed into a prime (120200021101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4071226 + ... + 4100643.

It is an arithmetic number, because the mean of its divisors is an integer number (20037425240).

Almost surely, 2^120200021121 is an apocalyptic number.

It is an amenable number.

120200021121 is a deficient number, since it is larger than the sum of its proper divisors (40099380799).

120200021121 is an equidigital number, since it uses as much as digits as its factorization.

120200021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8176775.

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

Adding to 120200021121 its reverse (121120002021), we get a palindrome (241320023142).

The spelling of 120200021121 in words is "one hundred twenty billion, two hundred million, twenty-one thousand, one hundred twenty-one".