211221000298 has 64 divisors (see below), whose sum is σ = 405580234752. Its totient is φ = 80105014080.

The previous prime is 211221000293. The next prime is 211221000311. The reversal of 211221000298 is 892000122112.

It is a super-2 number, since 2×211221000298² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211221000293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1885815 + ... + 1994677.

It is an arithmetic number, because the mean of its divisors is an integer number (6337191168).

Almost surely, 2^211221000298 is an apocalyptic number.

211221000298 is a deficient number, since it is larger than the sum of its proper divisors (194359234454).

211221000298 is a wasteful number, since it uses less digits than its factorization.

211221000298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109219.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 211221000298 in words is "two hundred eleven billion, two hundred twenty-one million, two hundred ninety-eight", and thus it is an aban number.