7221701212 has 24 divisors (see below), whose sum is σ = 13920746112. Its totient is φ = 3250719600.

The previous prime is 7221701209. The next prime is 7221701231. The reversal of 7221701212 is 2121071227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792214 + ... + 801277.

It is an arithmetic number, because the mean of its divisors is an integer number (580031088).

Almost surely, 2^7221701212 is an apocalyptic number.

It is an amenable number.

7221701212 is a deficient number, since it is larger than the sum of its proper divisors (6699044900).

7221701212 is a wasteful number, since it uses less digits than its factorization.

7221701212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593609 (or 1593607 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 7221701212 is about 84980.5931492597. The cubic root of 7221701212 is about 1932.9168501863.

Adding to 7221701212 its reverse (2121071227), we get a palindrome (9342772439).

The spelling of 7221701212 in words is "seven billion, two hundred twenty-one million, seven hundred one thousand, two hundred twelve".