3115521222 has 16 divisors (see below), whose sum is σ = 6797500992. Its totient is φ = 944097320.

The previous prime is 3115521209. The next prime is 3115521349. The reversal of 3115521222 is 2221255113.

3115521222 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3115521192 and 3115521201.

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, 23602368 + ... + 23602499.

It is an arithmetic number, because the mean of its divisors is an integer number (424843812).

Almost surely, 2^3115521222 is an apocalyptic number.

3115521222 is an abundant number, since it is smaller than the sum of its proper divisors (3681979770).

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

3115521222 is a wasteful number, since it uses less digits than its factorization.

3115521222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47204883.

The product of its digits is 1200, while the sum is 24.

The square root of 3115521222 is about 55816.8542825552. The cubic root of 3115521222 is about 1460.5291792265.

Adding to 3115521222 its reverse (2221255113), we get a palindrome (5336776335).

The spelling of 3115521222 in words is "three billion, one hundred fifteen million, five hundred twenty-one thousand, two hundred twenty-two".