888212120212221 has 64 divisors (see below), whose sum is σ = 1474107111014400. Its totient is φ = 464168385709056.

The previous prime is 888212120212147. The next prime is 888212120212237. The reversal of 888212120212221 is 122212021212888.

It is not a de Polignac number, because 888212120212221 - 2²³ = 888212111823613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (888212120210221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 54045796 + ... + 68537378.

It is an arithmetic number, because the mean of its divisors is an integer number (23032923609600).

Almost surely, 2^{888212120212221} is an apocalyptic number.

It is an amenable number.

888212120212221 is a deficient number, since it is larger than the sum of its proper divisors (585894990802179).

888212120212221 is a wasteful number, since it uses less digits than its factorization.

888212120212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14496938.

The product of its (nonzero) digits is 65536, while the sum is 42.

The spelling of 888212120212221 in words is "eight hundred eighty-eight trillion, two hundred twelve billion, one hundred twenty million, two hundred twelve thousand, two hundred twenty-one".