1216002022 has 8 divisors (see below), whose sum is σ = 1824161400. Its totient is φ = 607948224.

The previous prime is 1216001989. The next prime is 1216002043. The reversal of 1216002022 is 2202006121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1216001987 and 1216002005.

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, 16054 + ... + 51862.

It is an arithmetic number, because the mean of its divisors is an integer number (228020175).

Almost surely, 2^1216002022 is an apocalyptic number.

1216002022 is a deficient number, since it is larger than the sum of its proper divisors (608159378).

1216002022 is a wasteful number, since it uses less digits than its factorization.

1216002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52790.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1216002022 is about 34871.2205407267. The cubic root of 1216002022 is about 1067.3612511012.

Adding to 1216002022 its reverse (2202006121), we get a palindrome (3418008143).

The spelling of 1216002022 in words is "one billion, two hundred sixteen million, two thousand, twenty-two".