1242216202 has 8 divisors (see below), whose sum is σ = 1872783396. Its totient is φ = 617955072.

The previous prime is 1242216191. The next prime is 1242216229. The reversal of 1242216202 is 2026122421.

It can be written as a sum of positive squares in 2 ways, for example, as 1224230121 + 17986081 = 34989^2 + 4241^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1242216202² = 3086202185022609608, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1576023 + ... + 1576810.

Almost surely, 2^1242216202 is an apocalyptic number.

1242216202 is a deficient number, since it is larger than the sum of its proper divisors (630567194).

1242216202 is a wasteful number, since it uses less digits than its factorization.

1242216202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153032.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1242216202 is about 35245.0876293420. The cubic root of 1242216202 is about 1074.9767298370.

Adding to 1242216202 its reverse (2026122421), we get a palindrome (3268338623).

The spelling of 1242216202 in words is "one billion, two hundred forty-two million, two hundred sixteen thousand, two hundred two".