71421023322 has 128 divisors (see below), whose sum is σ = 183467980800. Its totient is φ = 20353939200.

The previous prime is 71421023291. The next prime is 71421023353. The reversal of 71421023322 is 22332012417.

71421023322 is a `hidden beast` number, since 7 + 1 + 421 + 0 + 233 + 2 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (71421023291) and next prime (71421023353).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21517179 + ... + 21520497.

It is an arithmetic number, because the mean of its divisors is an integer number (1433343600).

Almost surely, 2^71421023322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71421023322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91733990400).

71421023322 is an abundant number, since it is smaller than the sum of its proper divisors (112046957478).

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

71421023322 is a wasteful number, since it uses less digits than its factorization.

71421023322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5489 (or 5483 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

Adding to 71421023322 its reverse (22332012417), we get a palindrome (93753035739).

The spelling of 71421023322 in words is "seventy-one billion, four hundred twenty-one million, twenty-three thousand, three hundred twenty-two".