1142211215 has 16 divisors (see below), whose sum is σ = 1478668608. Its totient is φ = 843787776.

The previous prime is 1142211209. The next prime is 1142211227. The reversal of 1142211215 is 5121122411.

It is a cyclic number.

It is not a de Polignac number, because 1142211215 - 2⁴ = 1142211199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122267 + ... + 131276.

It is an arithmetic number, because the mean of its divisors is an integer number (92416788).

Almost surely, 2^1142211215 is an apocalyptic number.

1142211215 is a deficient number, since it is larger than the sum of its proper divisors (336457393).

1142211215 is a wasteful number, since it uses less digits than its factorization.

1142211215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253618.

The product of its digits is 160, while the sum is 20.

The square root of 1142211215 is about 33796.6154370523. The cubic root of 1142211215 is about 1045.3189094047.

Adding to 1142211215 its reverse (5121122411), we get a palindrome (6263333626).

The spelling of 1142211215 in words is "one billion, one hundred forty-two million, two hundred eleven thousand, two hundred fifteen".