1211015452 has 12 divisors (see below), whose sum is σ = 2140260696. Its totient is φ = 599512400.

The previous prime is 1211015447. The next prime is 1211015453. The reversal of 1211015452 is 2545101121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211015453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1498378 + ... + 1499185.

It is an arithmetic number, because the mean of its divisors is an integer number (178355058).

Almost surely, 2^1211015452 is an apocalyptic number.

It is an amenable number.

1211015452 is a deficient number, since it is larger than the sum of its proper divisors (929245244).

1211015452 is a wasteful number, since it uses less digits than its factorization.

1211015452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997668 (or 2997666 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1211015452 is about 34799.6472970632. The cubic root of 1211015452 is about 1065.9002437548.

Adding to 1211015452 its reverse (2545101121), we get a palindrome (3756116573).

The spelling of 1211015452 in words is "one billion, two hundred eleven million, fifteen thousand, four hundred fifty-two".