3223111021 has 8 divisors (see below), whose sum is σ = 3476179224. Its totient is φ = 2970776640.

The previous prime is 3223110977. The next prime is 3223111061. The reversal of 3223111021 is 1201113223.

It can be written as a sum of positive squares in 4 ways, for example, as 2043944100 + 1179166921 = 45210^2 + 34339^2 .

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

It is not a de Polignac number, because 3223111021 - 2¹⁵ = 3223078253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3223110986 and 3223111004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3223111061) 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, 174310 + ... + 191911.

It is an arithmetic number, because the mean of its divisors is an integer number (434522403).

Almost surely, 2^3223111021 is an apocalyptic number.

It is an amenable number.

3223111021 is a deficient number, since it is larger than the sum of its proper divisors (253068203).

3223111021 is a wasteful number, since it uses less digits than its factorization.

3223111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366911.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3223111021 is about 56772.4494891668. The cubic root of 3223111021 is about 1477.1516651965.

Adding to 3223111021 its reverse (1201113223), we get a palindrome (4424224244).

It can be divided in two parts, 3223 and 111021, that added together give a square (114244 = 338²).

The spelling of 3223111021 in words is "three billion, two hundred twenty-three million, one hundred eleven thousand, twenty-one".