222121196 has 24 divisors (see below), whose sum is σ = 424814544. Its totient is φ = 100782080.

The previous prime is 222121183. The next prime is 222121199. The reversal of 222121196 is 691121222.

It is not an unprimeable number, because it can be changed into a prime (222121199) 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, 21836 + ... + 30348.

It is an arithmetic number, because the mean of its divisors is an integer number (17700606).

Almost surely, 2^222121196 is an apocalyptic number.

It is an amenable number.

222121196 is a deficient number, since it is larger than the sum of its proper divisors (202693348).

222121196 is a wasteful number, since it uses less digits than its factorization.

222121196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9121 (or 9119 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

The square root of 222121196 is about 14903.7309422842. The cubic root of 222121196 is about 605.6150619499.

Adding to 222121196 its sum of digits (26), we get a palindrome (222121222).

The spelling of 222121196 in words is "two hundred twenty-two million, one hundred twenty-one thousand, one hundred ninety-six".