71224221000 has 64 divisors (see below), whose sum is σ = 222219578880. Its totient is φ = 18993124800.

The previous prime is 71224220999. The next prime is 71224221011. The reversal of 71224221000 is 12242217.

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, 11867704 + ... + 11873703.

It is an arithmetic number, because the mean of its divisors is an integer number (3472180920).

Almost surely, 2^71224221000 is an apocalyptic number.

It is an amenable number.

71224221000 is an abundant number, since it is smaller than the sum of its proper divisors (150995357880).

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

71224221000 is a wasteful number, since it uses less digits than its factorization.

71224221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23741431 (or 23741417 counting only the distinct ones).

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

Adding to 71224221000 its reverse (12242217), we get a palindrome (71236463217).

The spelling of 71224221000 in words is "seventy-one billion, two hundred twenty-four million, two hundred twenty-one thousand".