201111212986 has 16 divisors (see below), whose sum is σ = 315716865984. Its totient is φ = 95898204864.

The previous prime is 201111212983. The next prime is 201111212989. The reversal of 201111212986 is 689212111102.

It is an interprime number because it is at equal distance from previous prime (201111212983) and next prime (201111212989).

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, 6471120 + ... + 6502123.

It is an arithmetic number, because the mean of its divisors is an integer number (19732304124).

Almost surely, 2^201111212986 is an apocalyptic number.

201111212986 is a deficient number, since it is larger than the sum of its proper divisors (114605652998).

201111212986 is a wasteful number, since it uses less digits than its factorization.

201111212986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12973605.

The product of its (nonzero) digits is 3456, while the sum is 34.

The spelling of 201111212986 in words is "two hundred one billion, one hundred eleven million, two hundred twelve thousand, nine hundred eighty-six".