217422002 has 8 divisors (see below), whose sum is σ = 372723456. Its totient is φ = 93180852.

The previous prime is 217421969. The next prime is 217422017. The reversal of 217422002 is 200224712.

It is a happy number.

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

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, 7765058 + ... + 7765085.

It is an arithmetic number, because the mean of its divisors is an integer number (46590432).

Almost surely, 2^217422002 is an apocalyptic number.

217422002 is a deficient number, since it is larger than the sum of its proper divisors (155301454).

217422002 is a wasteful number, since it uses less digits than its factorization.

217422002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15530152.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 217422002 is about 14745.2365867761. The cubic root of 217422002 is about 601.3137896800.

Adding to 217422002 its reverse (200224712), we get a palindrome (417646714).

The spelling of 217422002 in words is "two hundred seventeen million, four hundred twenty-two thousand, two".