1225511214 has 16 divisors (see below), whose sum is σ = 2451485952. Its totient is φ = 408426488.

The previous prime is 1225511171. The next prime is 1225511237. The reversal of 1225511214 is 4121155221.

It is a happy number.

It is a Curzon number.

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, 21787 + ... + 54089.

It is an arithmetic number, because the mean of its divisors is an integer number (153217872).

Almost surely, 2^1225511214 is an apocalyptic number.

1225511214 is an abundant number, since it is smaller than the sum of its proper divisors (1225974738).

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

1225511214 is a wasteful number, since it uses less digits than its factorization.

1225511214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38631.

The product of its digits is 800, while the sum is 24.

The square root of 1225511214 is about 35007.3022953783. The cubic root of 1225511214 is about 1070.1363013835.

Adding to 1225511214 its reverse (4121155221), we get a palindrome (5346666435).

The spelling of 1225511214 in words is "one billion, two hundred twenty-five million, five hundred eleven thousand, two hundred fourteen".