120211902181187 has 4 divisors (see below), whose sum is σ = 120212711766600. Its totient is φ = 120211092595776.

The previous prime is 120211902181169. The next prime is 120211902181199. The reversal of 120211902181187 is 781181209112021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120211902181187 - 2²² = 120211897986883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120211902181087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404569937 + ... + 404866962.

It is an arithmetic number, because the mean of its divisors is an integer number (30053177941650).

Almost surely, 2^{120211902181187} is an apocalyptic number.

120211902181187 is a deficient number, since it is larger than the sum of its proper divisors (809585413).

120211902181187 is an equidigital number, since it uses as much as digits as its factorization.

120211902181187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809585412.

The product of its (nonzero) digits is 32256, while the sum is 44.

The spelling of 120211902181187 in words is "one hundred twenty trillion, two hundred eleven billion, nine hundred two million, one hundred eighty-one thousand, one hundred eighty-seven".