1210220012 has 24 divisors (see below), whose sum is σ = 2147959296. Its totient is φ = 596548688.

The previous prime is 1210219973. The next prime is 1210220017. The reversal of 1210220012 is 2100220121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1210219975 and 1210220002.

It is not an unprimeable number, because it can be changed into a prime (1210220017) 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, 163373 + ... + 170619.

It is an arithmetic number, because the mean of its divisors is an integer number (89498304).

Almost surely, 2^1210220012 is an apocalyptic number.

It is an amenable number.

1210220012 is a deficient number, since it is larger than the sum of its proper divisors (937739284).

1210220012 is a wasteful number, since it uses less digits than its factorization.

1210220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7837 (or 7835 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1210220012 is about 34788.2165682577. The cubic root of 1210220012 is about 1065.6668183289. Note that the first 3 decimals are identical.

Adding to 1210220012 its reverse (2100220121), we get a palindrome (3310440133).

The spelling of 1210220012 in words is "one billion, two hundred ten million, two hundred twenty thousand, twelve".