7721201214 has 12 divisors (see below), whose sum is σ = 16729269336. Its totient is φ = 2573733732.

The previous prime is 7721201197. The next prime is 7721201249. The reversal of 7721201214 is 4121021277.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 214477794 + ... + 214477829.

It is an arithmetic number, because the mean of its divisors is an integer number (1394105778).

Almost surely, 2^7721201214 is an apocalyptic number.

7721201214 is an abundant number, since it is smaller than the sum of its proper divisors (9008068122).

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

7721201214 is a wasteful number, since it uses less digits than its factorization.

7721201214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428955631 (or 428955628 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 7721201214 is about 87870.3659603168. The cubic root of 7721201214 is about 1976.4915263260.

The spelling of 7721201214 in words is "seven billion, seven hundred twenty-one million, two hundred one thousand, two hundred fourteen".