1242522112 has 160 divisors (see below), whose sum is σ = 2887315200. Its totient is φ = 529072128.

The previous prime is 1242522107. The next prime is 1242522121. The reversal of 1242522112 is 2112252421.

It is a super-2 number, since 2×1242522112² = 3087722397617881088, which contains 22 as substring.

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, 8938939 + ... + 8939077.

It is an arithmetic number, because the mean of its divisors is an integer number (18045720).

Almost surely, 2^1242522112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242522112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1443657600).

1242522112 is an abundant number, since it is smaller than the sum of its proper divisors (1644793088).

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

1242522112 is a wasteful number, since it uses less digits than its factorization.

1242522112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 250 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 1242522112 is about 35249.4271159121. The cubic root of 1242522112 is about 1075.0649643812.

Adding to 1242522112 its reverse (2112252421), we get a palindrome (3354774533).

The spelling of 1242522112 in words is "one billion, two hundred forty-two million, five hundred twenty-two thousand, one hundred twelve".