222121021202 has 8 divisors (see below), whose sum is σ = 336130041276. Its totient is φ = 110077674112.

The previous prime is 222121021181. The next prime is 222121021217. The reversal of 222121021202 is 202120121222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 189302437921 + 32818583281 = 435089^2 + 181159^2 .

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

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, 491417963 + ... + 491418414.

Almost surely, 2^222121021202 is an apocalyptic number.

222121021202 is a deficient number, since it is larger than the sum of its proper divisors (114009020074).

222121021202 is a wasteful number, since it uses less digits than its factorization.

222121021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982836492.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222121021202 its reverse (202120121222), we get a palindrome (424241142424).

The spelling of 222121021202 in words is "two hundred twenty-two billion, one hundred twenty-one million, twenty-one thousand, two hundred two".