84421211215 has 16 divisors (see below), whose sum is σ = 111756788640. Its totient is φ = 60707384320.

The previous prime is 84421211207. The next prime is 84421211227. The reversal of 84421211215 is 51211212448.

It is not a de Polignac number, because 84421211215 - 2³ = 84421211207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8618314 + ... + 8628103.

It is an arithmetic number, because the mean of its divisors is an integer number (6984799290).

Almost surely, 2^84421211215 is an apocalyptic number.

84421211215 is a deficient number, since it is larger than the sum of its proper divisors (27335577425).

84421211215 is a wasteful number, since it uses less digits than its factorization.

84421211215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17246522.

The product of its digits is 5120, while the sum is 31.

The spelling of 84421211215 in words is "eighty-four billion, four hundred twenty-one million, two hundred eleven thousand, two hundred fifteen".