226222621172 has 6 divisors (see below), whose sum is σ = 395889587058. Its totient is φ = 113111310584.

The previous prime is 226222621159. The next prime is 226222621201. The reversal of 226222621172 is 271126222622.

It can be written as a sum of positive squares in only one way, i.e., 132442133476 + 93780487696 = 363926^2 + 306236^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28277827643 + ... + 28277827650.

It is an arithmetic number, because the mean of its divisors is an integer number (65981597843).

Almost surely, 2^226222621172 is an apocalyptic number.

It is an amenable number.

226222621172 is a deficient number, since it is larger than the sum of its proper divisors (169666965886).

226222621172 is a wasteful number, since it uses less digits than its factorization.

226222621172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56555655297 (or 56555655295 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

Adding to 226222621172 its reverse (271126222622), we get a palindrome (497348843794).

The spelling of 226222621172 in words is "two hundred twenty-six billion, two hundred twenty-two million, six hundred twenty-one thousand, one hundred seventy-two".