7209221101 has 8 divisors (see below), whose sum is σ = 7542186624. Its totient is φ = 6883738080.

The previous prime is 7209221051. The next prime is 7209221111. The reversal of 7209221101 is 1011229027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7209221101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7209221111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1868655 + ... + 1872508.

It is an arithmetic number, because the mean of its divisors is an integer number (942773328).

Almost surely, 2^7209221101 is an apocalyptic number.

It is an amenable number.

7209221101 is a deficient number, since it is larger than the sum of its proper divisors (332965523).

7209221101 is a wasteful number, since it uses less digits than its factorization.

7209221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741251.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 7209221101 is about 84907.1322151443. The cubic root of 7209221101 is about 1931.8027578380.

The spelling of 7209221101 in words is "seven billion, two hundred nine million, two hundred twenty-one thousand, one hundred one".