201222323402 has 4 divisors (see below), whose sum is σ = 301833485106. Its totient is φ = 100611161700.

The previous prime is 201222323399. The next prime is 201222323417. The reversal of 201222323402 is 204323222102.

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., 200866208761 + 356114641 = 448181^2 + 18871^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50305580849 + ... + 50305580852.

Almost surely, 2^201222323402 is an apocalyptic number.

201222323402 is a deficient number, since it is larger than the sum of its proper divisors (100611161704).

201222323402 is a wasteful number, since it uses less digits than its factorization.

201222323402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100611161703.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 201222323402 its reverse (204323222102), we get a palindrome (405545545504).

The spelling of 201222323402 in words is "two hundred one billion, two hundred twenty-two million, three hundred twenty-three thousand, four hundred two".