221321102103122 has 24 divisors (see below), whose sum is σ = 386230695900876. Its totient is φ = 94840122107808.

The previous prime is 221321102103107. The next prime is 221321102103131. The reversal of 221321102103122 is 221301201123122.

It can be written as a sum of positive squares in 2 ways, for example, as 219056013892681 + 2265088210441 = 14800541^2 + 1505021^2 .

It is a super-2 number, since 2×221321102103122² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139430513 + ... + 141008900.

Almost surely, 2^{221321102103122} is an apocalyptic number.

221321102103122 is a deficient number, since it is larger than the sum of its proper divisors (164909593797754).

221321102103122 is a wasteful number, since it uses less digits than its factorization.

221321102103122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280447482 (or 280447475 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 221321102103122 its reverse (221301201123122), we get a palindrome (442622303226244).

The spelling of 221321102103122 in words is "two hundred twenty-one trillion, three hundred twenty-one billion, one hundred two million, one hundred three thousand, one hundred twenty-two".