216122498 has 4 divisors (see below), whose sum is σ = 324183750. Its totient is φ = 108061248.

The previous prime is 216122461. The next prime is 216122519. The reversal of 216122498 is 894221612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 131721529 + 84400969 = 11477^2 + 9187^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 54030623 + ... + 54030626.

Almost surely, 2^216122498 is an apocalyptic number.

216122498 is a deficient number, since it is larger than the sum of its proper divisors (108061252).

216122498 is a wasteful number, since it uses less digits than its factorization.

216122498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108061251.

The product of its digits is 13824, while the sum is 35.

The square root of 216122498 is about 14701.1053325932. The cubic root of 216122498 is about 600.1134026391.

The spelling of 216122498 in words is "two hundred sixteen million, one hundred twenty-two thousand, four hundred ninety-eight".