2210120021987 has 8 divisors (see below), whose sum is σ = 2321485128960. Its totient is φ = 2100027659400.

The previous prime is 2210120021983. The next prime is 2210120022007. The reversal of 2210120021987 is 7891200210122.

2210120021987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2210120021987 - 2² = 2210120021983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2210120021981) 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, 318182537 + ... + 318189482.

It is an arithmetic number, because the mean of its divisors is an integer number (290185641120).

Almost surely, 2^{2210120021987} is an apocalyptic number.

2210120021987 is a deficient number, since it is larger than the sum of its proper divisors (111365106973).

2210120021987 is a wasteful number, since it uses less digits than its factorization.

2210120021987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636372193.

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 2210120021987 in words is "two trillion, two hundred ten billion, one hundred twenty million, twenty-one thousand, nine hundred eighty-seven".