221301131222 has 16 divisors (see below), whose sum is σ = 346401273600. Its totient is φ = 105834509352.

The previous prime is 221301131203. The next prime is 221301131231. The reversal of 221301131222 is 222131103122.

It is a junction number, because it is equal to n+sod(n) for n = 221301131194 and 221301131203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938183 + ... + 1150125.

It is an arithmetic number, because the mean of its divisors is an integer number (21650079600).

Almost surely, 2^221301131222 is an apocalyptic number.

221301131222 is a deficient number, since it is larger than the sum of its proper divisors (125100142378).

221301131222 is a wasteful number, since it uses less digits than its factorization.

221301131222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234667.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 221301131222 its reverse (222131103122), we get a palindrome (443432234344).

The spelling of 221301131222 in words is "two hundred twenty-one billion, three hundred one million, one hundred thirty-one thousand, two hundred twenty-two".