221322404223122 has 4 divisors (see below), whose sum is σ = 331983606334686. Its totient is φ = 110661202111560.

The previous prime is 221322404223097. The next prime is 221322404223131.

221322404223122 is nontrivially palindromic in base 10.

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., 137436020802721 + 83886383420401 = 11723311^2 + 9158951^2 .

It is a super-2 number, since 2×221322404223122² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55330601055779 + ... + 55330601055782.

Almost surely, 2^{221322404223122} is an apocalyptic number.

221322404223122 is a deficient number, since it is larger than the sum of its proper divisors (110661202111564).

221322404223122 is a wasteful number, since it uses less digits than its factorization.

221322404223122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110661202111563.

The product of its (nonzero) digits is 36864, while the sum is 32.

It can be divided in two parts, 22132240 and 4223122, that added together give a palindrome (26355362).

The spelling of 221322404223122 in words is "two hundred twenty-one trillion, three hundred twenty-two billion, four hundred four million, two hundred twenty-three thousand, one hundred twenty-two".