212201001987 has 32 divisors (see below), whose sum is σ = 307228432896. Its totient is φ = 129502464000.

The previous prime is 212201001959. The next prime is 212201002021. The reversal of 212201001987 is 789100102212.

It is not a de Polignac number, because 212201001987 - 2¹⁴ = 212200985603 is a prime.

It is a super-3 number, since 3×212201001987³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (212201001487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8166538 + ... + 8192480.

It is an arithmetic number, because the mean of its divisors is an integer number (9600888528).

Almost surely, 2^212201001987 is an apocalyptic number.

212201001987 is a deficient number, since it is larger than the sum of its proper divisors (95027430909).

212201001987 is a wasteful number, since it uses less digits than its factorization.

212201001987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27691.

The product of its (nonzero) digits is 4032, while the sum is 33.

The spelling of 212201001987 in words is "two hundred twelve billion, two hundred one million, one thousand, nine hundred eighty-seven".