102011222 has 16 divisors (see below), whose sum is σ = 158730000. Its totient is φ = 49133952.

The previous prime is 102011219. The next prime is 102011227. The reversal of 102011222 is 222110201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1847 + ... + 14402.

It is an arithmetic number, because the mean of its divisors is an integer number (9920625).

Almost surely, 2^102011222 is an apocalyptic number.

102011222 is a deficient number, since it is larger than the sum of its proper divisors (56718778).

102011222 is a wasteful number, since it uses less digits than its factorization.

102011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16367.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 102011222 is about 10100.0604948683. The cubic root of 102011222 is about 467.2500071330.

Adding to 102011222 its reverse (222110201), we get a palindrome (324121423).

The spelling of 102011222 in words is "one hundred two million, eleven thousand, two hundred twenty-two".