1200220197 has 16 divisors (see below), whose sum is σ = 1755874368. Its totient is φ = 723198080.

The previous prime is 1200220163. The next prime is 1200220223. The reversal of 1200220197 is 7910220021.

It is not a de Polignac number, because 1200220197 - 2¹⁴ = 1200203813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200220157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99408 + ... + 110825.

It is an arithmetic number, because the mean of its divisors is an integer number (109742148).

Almost surely, 2^1200220197 is an apocalyptic number.

It is an amenable number.

1200220197 is a deficient number, since it is larger than the sum of its proper divisors (555654171).

1200220197 is a wasteful number, since it uses less digits than its factorization.

1200220197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210420.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 1200220197 is about 34644.1942755204. The cubic root of 1200220197 is about 1062.7235636043.

The spelling of 1200220197 in words is "one billion, two hundred million, two hundred twenty thousand, one hundred ninety-seven".