102220406 has 8 divisors (see below), whose sum is σ = 153373584. Its totient is φ = 51095880.

The previous prime is 102220403. The next prime is 102220451. The reversal of 102220406 is 604022201.

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

It is a super-2 number, since 2×102220406² = 20898022805609672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220403) 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, 9671 + ... + 17261.

It is an arithmetic number, because the mean of its divisors is an integer number (19171698).

Almost surely, 2^102220406 is an apocalyptic number.

102220406 is a deficient number, since it is larger than the sum of its proper divisors (51153178).

102220406 is an equidigital number, since it uses as much as digits as its factorization.

102220406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14326.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 102220406 is about 10110.4107730596. The cubic root of 102220406 is about 467.5691697057.

Adding to 102220406 its reverse (604022201), we get a palindrome (706242607).

The spelling of 102220406 in words is "one hundred two million, two hundred twenty thousand, four hundred six".