211011022812 has 48 divisors (see below), whose sum is σ = 493015928832. Its totient is φ = 70243243200.

The previous prime is 211011022811. The next prime is 211011022919. The reversal of 211011022812 is 218220110112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211011022811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35743453 + ... + 35749355.

It is an arithmetic number, because the mean of its divisors is an integer number (10271165184).

Almost surely, 2^211011022812 is an apocalyptic number.

It is an amenable number.

211011022812 is an abundant number, since it is smaller than the sum of its proper divisors (282004906020).

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

211011022812 is a wasteful number, since it uses less digits than its factorization.

211011022812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9378 (or 9376 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 211011022812 its reverse (218220110112), we get a palindrome (429231132924).

The spelling of 211011022812 in words is "two hundred eleven billion, eleven million, twenty-two thousand, eight hundred twelve".