212222084544 has 168 divisors, whose sum is σ = 644355185760. Its totient is φ = 66550874112.

The previous prime is 212222084537. The next prime is 212222084551. The reversal of 212222084544 is 445480222212.

212222084544 is a `hidden beast` number, since 2 + 12 + 2 + 2 + 20 + 84 + 544 = 666.

It is an interprime number because it is at equal distance from previous prime (212222084537) and next prime (212222084551).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 212222084499 and 212222084508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44874372 + ... + 44879100.

Almost surely, 2^212222084544 is an apocalyptic number.

212222084544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212222084544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322177592880).

212222084544 is an abundant number, since it is smaller than the sum of its proper divisors (432133101216).

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

212222084544 is a wasteful number, since it uses less digits than its factorization.

212222084544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9347 (or 9334 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 36.

The spelling of 212222084544 in words is "two hundred twelve billion, two hundred twenty-two million, eighty-four thousand, five hundred forty-four".