1253511222 has 16 divisors (see below), whose sum is σ = 2507848752. Its totient is φ = 417699360.

The previous prime is 1253511221. The next prime is 1253511253. The reversal of 1253511222 is 2221153521.

It is a junction number, because it is equal to n+sod(n) for n = 1253511192 and 1253511201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253511221) 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, 13753 + ... + 51924.

It is an arithmetic number, because the mean of its divisors is an integer number (156740547).

Almost surely, 2^1253511222 is an apocalyptic number.

1253511222 is an abundant number, since it is smaller than the sum of its proper divisors (1254337530).

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

1253511222 is a wasteful number, since it uses less digits than its factorization.

1253511222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68863.

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

The square root of 1253511222 is about 35404.9604151735. The cubic root of 1253511222 is about 1078.2250285481.

Adding to 1253511222 its reverse (2221153521), we get a palindrome (3474664743).

The spelling of 1253511222 in words is "one billion, two hundred fifty-three million, five hundred eleven thousand, two hundred twenty-two".