242221012 has 12 divisors (see below), whose sum is σ = 462422016. Its totient is φ = 110100440.

The previous prime is 242220991. The next prime is 242221051. The reversal of 242221012 is 210122242.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2752468 + ... + 2752555.

It is an arithmetic number, because the mean of its divisors is an integer number (38535168).

Almost surely, 2^242221012 is an apocalyptic number.

242221012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

242221012 is a deficient number, since it is larger than the sum of its proper divisors (220201004).

242221012 is a wasteful number, since it uses less digits than its factorization.

242221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5505038 (or 5505036 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 242221012 is about 15563.4511596882. The cubic root of 242221012 is about 623.3576181514.

Adding to 242221012 its reverse (210122242), we get a palindrome (452343254).

The spelling of 242221012 in words is "two hundred forty-two million, two hundred twenty-one thousand, twelve".