102222011 has 4 divisors (see below), whose sum is σ = 102243432. Its totient is φ = 102200592.

The previous prime is 102221989. The next prime is 102222023. The reversal of 102222011 is 110222201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110222201 = 43 ⋅2563307.

It is a cyclic number.

It is not a de Polignac number, because 102222011 - 2¹⁴ = 102205627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102221983 and 102222001.

It is not an unprimeable number, because it can be changed into a prime (102222611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56 + ... + 14298.

It is an arithmetic number, because the mean of its divisors is an integer number (25560858).

Almost surely, 2^102222011 is an apocalyptic number.

102222011 is a deficient number, since it is larger than the sum of its proper divisors (21421).

102222011 is an equidigital number, since it uses as much as digits as its factorization.

102222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21420.

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

The square root of 102222011 is about 10110.4901463777. The cubic root of 102222011 is about 467.5716168511.

Adding to 102222011 its reverse (110222201), we get a palindrome (212444212).

The spelling of 102222011 in words is "one hundred two million, two hundred twenty-two thousand, eleven".