201212009984 has 40 divisors (see below), whose sum is σ = 412896770088. Its totient is φ = 97886914560.

The previous prime is 201212009983. The next prime is 201212010089. The reversal of 201212009984 is 489900212102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201212009981) 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, 5291762 + ... + 5329649.

Almost surely, 2^201212009984 is an apocalyptic number.

It is an amenable number.

201212009984 is an abundant number, since it is smaller than the sum of its proper divisors (211684760104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201212009984 is an equidigital number, since it uses as much as digits as its factorization.

201212009984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10621466 (or 10621450 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 201212009984 in words is "two hundred one billion, two hundred twelve million, nine thousand, nine hundred eighty-four".