3722219261 has 4 divisors (see below), whose sum is σ = 3732040800. Its totient is φ = 3712397724.

The previous prime is 3722219231. The next prime is 3722219287. The reversal of 3722219261 is 1629122273.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3722219261 - 2³⁰ = 2648477437 is a prime.

It is a super-2 number, since 2×3722219261² = 27709832453918772242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3722219201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4910201 + ... + 4910958.

It is an arithmetic number, because the mean of its divisors is an integer number (933010200).

Almost surely, 2^3722219261 is an apocalyptic number.

It is an amenable number.

3722219261 is a deficient number, since it is larger than the sum of its proper divisors (9821539).

3722219261 is an equidigital number, since it uses as much as digits as its factorization.

3722219261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9821538.

The product of its digits is 18144, while the sum is 35.

The square root of 3722219261 is about 61009.9931240776. The cubic root of 3722219261 is about 1549.7702414906.

The spelling of 3722219261 in words is "three billion, seven hundred twenty-two million, two hundred nineteen thousand, two hundred sixty-one".