1097218196 has 24 divisors (see below), whose sum is σ = 1967777280. Its totient is φ = 535077152.

The previous prime is 1097218193. The next prime is 1097218201. The reversal of 1097218196 is 6918127901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097218193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45125 + ... + 65043.

It is an arithmetic number, because the mean of its divisors is an integer number (81990720).

Almost surely, 2^1097218196 is an apocalyptic number.

It is an amenable number.

1097218196 is a deficient number, since it is larger than the sum of its proper divisors (870559084).

1097218196 is a wasteful number, since it uses less digits than its factorization.

1097218196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20263 (or 20261 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 44.

The square root of 1097218196 is about 33124.2840828296. The cubic root of 1097218196 is about 1031.4091987785.

The spelling of 1097218196 in words is "one billion, ninety-seven million, two hundred eighteen thousand, one hundred ninety-six".