201111212987 has 8 divisors (see below), whose sum is σ = 201868346880. Its totient is φ = 200354190120.

The previous prime is 201111212983. The next prime is 201111212989. The reversal of 201111212987 is 789212111102.

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 201111212987 - 2² = 201111212983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201111212983) 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, 6232898 + ... + 6265080.

It is an arithmetic number, because the mean of its divisors is an integer number (25233543360).

Almost surely, 2^201111212987 is an apocalyptic number.

201111212987 is a deficient number, since it is larger than the sum of its proper divisors (757133893).

201111212987 is a wasteful number, since it uses less digits than its factorization.

201111212987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55513.

The product of its (nonzero) digits is 4032, while the sum is 35.

The spelling of 201111212987 in words is "two hundred one billion, one hundred eleven million, two hundred twelve thousand, nine hundred eighty-seven".