211000222000 has 80 divisors (see below), whose sum is σ = 517187915712. Its totient is φ = 83243865600.

The previous prime is 211000221997. The next prime is 211000222021. The reversal of 211000222000 is 222000112.

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, 576604 + ... + 868603.

Almost surely, 2^211000222000 is an apocalyptic number.

211000222000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211000222000 is an abundant number, since it is smaller than the sum of its proper divisors (306187693712).

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

211000222000 is a wasteful number, since it uses less digits than its factorization.

211000222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445303 (or 1445287 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 211000222000 its reverse (222000112), we get a palindrome (211222222112).

The spelling of 211000222000 in words is "two hundred eleven billion, two hundred twenty-two thousand".