212221422054 has 48 divisors (see below), whose sum is σ = 490128537600. Its totient is φ = 66132414720.

The previous prime is 212221422053. The next prime is 212221422121. The reversal of 212221422054 is 450224122212.

212221422054 is a `hidden beast` number, since 2 + 12 + 221 + 422 + 0 + 5 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212221422053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2281702 + ... + 2372889.

It is an arithmetic number, because the mean of its divisors is an integer number (10211011200).

Almost surely, 2^212221422054 is an apocalyptic number.

212221422054 is an abundant number, since it is smaller than the sum of its proper divisors (277907115546).

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

212221422054 is a wasteful number, since it uses less digits than its factorization.

212221422054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4654765 (or 4654762 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 212221422054 its reverse (450224122212), we get a palindrome (662445544266).

The spelling of 212221422054 in words is "two hundred twelve billion, two hundred twenty-one million, four hundred twenty-two thousand, fifty-four".