122021221202 has 4 divisors (see below), whose sum is σ = 183031831806. Its totient is φ = 61010610600.

The previous prime is 122021221177. The next prime is 122021221207. The reversal of 122021221202 is 202122120221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 119604613921 + 2416607281 = 345839^2 + 49159^2 .

It is not an unprimeable number, because it can be changed into a prime (122021221207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30505305299 + ... + 30505305302.

Almost surely, 2^122021221202 is an apocalyptic number.

122021221202 is a deficient number, since it is larger than the sum of its proper divisors (61010610604).

122021221202 is an equidigital number, since it uses as much as digits as its factorization.

122021221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61010610603.

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

Adding to 122021221202 its reverse (202122120221), we get a palindrome (324143341423).

The spelling of 122021221202 in words is "one hundred twenty-two billion, twenty-one million, two hundred twenty-one thousand, two hundred two".