222221021101202 has 4 divisors (see below), whose sum is σ = 333331531651806. Its totient is φ = 111110510550600.

The previous prime is 222221021101201. The next prime is 222221021101229. The reversal of 222221021101202 is 202101120122222.

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., 171609449800441 + 50611571300761 = 13099979^2 + 7114181^2 .

It is not an unprimeable number, because it can be changed into a prime (222221021101201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555255275299 + ... + 55555255275302.

Almost surely, 2^{222221021101202} is an apocalyptic number.

222221021101202 is a deficient number, since it is larger than the sum of its proper divisors (111110510550604).

222221021101202 is a wasteful number, since it uses less digits than its factorization.

222221021101202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111110510550603.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222221021101202 its reverse (202101120122222), we get a palindrome (424322141223424).

The spelling of 222221021101202 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, twenty-one million, one hundred one thousand, two hundred two".