102222012 has 12 divisors (see below), whose sum is σ = 238518056. Its totient is φ = 34074000.

The previous prime is 102221989. The next prime is 102222023. The reversal of 102222012 is 210222201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 8518501 = 102222012 / (1 + 0 + 2 + 2 + 2 + 2 + 0 + 1 + 2).

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, 4259239 + ... + 4259262.

Almost surely, 2^102222012 is an apocalyptic number.

102222012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102222012 is an abundant number, since it is smaller than the sum of its proper divisors (136296044).

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

102222012 is a wasteful number, since it uses less digits than its factorization.

102222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8518508 (or 8518506 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 102222012 is about 10110.4901958313. The cubic root of 102222012 is about 467.5716183758.

Adding to 102222012 its reverse (210222201), we get a palindrome (312444213).

It can be divided in two parts, 10222201 and 2, that multiplied together give a palindrome (20444402).

The spelling of 102222012 in words is "one hundred two million, two hundred twenty-two thousand, twelve".