82221487421612 has 96 divisors (see below), whose sum is σ = 184723323918336. Its totient is φ = 31352763256320.

The previous prime is 82221487421611. The next prime is 82221487421707. The reversal of 82221487421612 is 21612478412228.

It is not an unprimeable number, because it can be changed into a prime (82221487421611) 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, 21718853 + ... + 25222044.

It is an arithmetic number, because the mean of its divisors is an integer number (1924201290816).

Almost surely, 2^{82221487421612} is an apocalyptic number.

It is an amenable number.

82221487421612 is an abundant number, since it is smaller than the sum of its proper divisors (102501836496724).

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

82221487421612 is a wasteful number, since it uses less digits than its factorization.

82221487421612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46940988 (or 46940964 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 50.

The spelling of 82221487421612 in words is "eighty-two trillion, two hundred twenty-one billion, four hundred eighty-seven million, four hundred twenty-one thousand, six hundred twelve".