3100001222 has 4 divisors (see below), whose sum is σ = 4650001836. Its totient is φ = 1550000610.

The previous prime is 3100001171. The next prime is 3100001257. The reversal of 3100001222 is 2221000013.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2221000013 = 12391 ⋅179243.

It is a super-2 number, since 2×3100001222² = 19220015152802986568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775000304 + ... + 775000307.

It is an arithmetic number, because the mean of its divisors is an integer number (1162500459).

Almost surely, 2^3100001222 is an apocalyptic number.

3100001222 is a deficient number, since it is larger than the sum of its proper divisors (1550000614).

3100001222 is a wasteful number, since it uses less digits than its factorization.

3100001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550000613.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 3100001222 is about 55677.6546021831. The cubic root of 3100001222 is about 1458.0999274179.

Adding to 3100001222 its reverse (2221000013), we get a palindrome (5321001235).

The spelling of 3100001222 in words is "three billion, one hundred million, one thousand, two hundred twenty-two".