211140345222 has 16 divisors (see below), whose sum is σ = 469200767280. Its totient is φ = 70380115056.

The previous prime is 211140345149. The next prime is 211140345233. The reversal of 211140345222 is 222543041112.

211140345222 is a `hidden beast` number, since 21 + 11 + 403 + 4 + 5 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1955003143 + ... + 1955003250.

It is an arithmetic number, because the mean of its divisors is an integer number (29325047955).

Almost surely, 2^211140345222 is an apocalyptic number.

211140345222 is an abundant number, since it is smaller than the sum of its proper divisors (258060422058).

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

211140345222 is a wasteful number, since it uses less digits than its factorization.

211140345222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3910006404 (or 3910006398 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 211140345222 its reverse (222543041112), we get a palindrome (433683386334).

The spelling of 211140345222 in words is "two hundred eleven billion, one hundred forty million, three hundred forty-five thousand, two hundred twenty-two".