212111002000 has 80 divisors (see below), whose sum is σ = 524812159872. Its totient is φ = 82871241600.

The previous prime is 212111001983. The next prime is 212111002067. The reversal of 212111002000 is 200111212.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1147204 + ... + 1319203.

Almost surely, 2^212111002000 is an apocalyptic number.

212111002000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212111002000 is an abundant number, since it is smaller than the sum of its proper divisors (312701157872).

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

212111002000 is a wasteful number, since it uses less digits than its factorization.

212111002000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466473 (or 2466457 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 212111002000 its reverse (200111212), we get a palindrome (212311113212).

The spelling of 212111002000 in words is "two hundred twelve billion, one hundred eleven million, two thousand".