1222100197 has 8 divisors (see below), whose sum is σ = 1327919360. Its totient is φ = 1120430880.

The previous prime is 1222100189. The next prime is 1222100221. The reversal of 1222100197 is 7910012221.

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

It is a cyclic number.

It is not a de Polignac number, because 1222100197 - 2³ = 1222100189 is a prime.

It is a super-3 number, since 3×1222100197³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222100137) 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, 1036848 + ... + 1038025.

It is an arithmetic number, because the mean of its divisors is an integer number (165989920).

Almost surely, 2^1222100197 is an apocalyptic number.

It is an amenable number.

1222100197 is a deficient number, since it is larger than the sum of its proper divisors (105819163).

1222100197 is a wasteful number, since it uses less digits than its factorization.

1222100197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074923.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 1222100197 is about 34958.5496981783. The cubic root of 1222100197 is about 1069.1425269881.

The spelling of 1222100197 in words is "one billion, two hundred twenty-two million, one hundred thousand, one hundred ninety-seven".