71222124 has 12 divisors (see below), whose sum is σ = 166184984. Its totient is φ = 23740704.

The previous prime is 71222119. The next prime is 71222141. The reversal of 71222124 is 42122217.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 71222124.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2967577 + ... + 2967600.

Almost surely, 2^71222124 is an apocalyptic number.

It is an amenable number.

71222124 is an abundant number, since it is smaller than the sum of its proper divisors (94962860).

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

71222124 is a wasteful number, since it uses less digits than its factorization.

71222124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5935184 (or 5935182 counting only the distinct ones).

The product of its digits is 448, while the sum is 21.

The square root of 71222124 is about 8439.3201147960. The cubic root of 71222124 is about 414.5131446565.

The spelling of 71222124 in words is "seventy-one million, two hundred twenty-two thousand, one hundred twenty-four".