211421132230 has 128 divisors (see below), whose sum is σ = 519695585280. Its totient is φ = 59882403840.

The previous prime is 211421132183. The next prime is 211421132257. The reversal of 211421132230 is 32231124112.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 101139 + ... + 658081.

It is an arithmetic number, because the mean of its divisors is an integer number (4060121760).

Almost surely, 2^211421132230 is an apocalyptic number.

211421132230 is an abundant number, since it is smaller than the sum of its proper divisors (308274453050).

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

211421132230 is a wasteful number, since it uses less digits than its factorization.

211421132230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557014.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 211421132230 its reverse (32231124112), we get a palindrome (243652256342).

The spelling of 211421132230 in words is "two hundred eleven billion, four hundred twenty-one million, one hundred thirty-two thousand, two hundred thirty".