1101221111322 has 20 divisors (see below), whose sum is σ = 2467551009066. Its totient is φ = 367073703720.

The previous prime is 1101221111303. The next prime is 1101221111329. The reversal of 1101221111322 is 2231111221011.

It is a happy number.

1101221111322 is a `hidden beast` number, since 1 + 10 + 1 + 221 + 111 + 322 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1063433250441 + 37787860881 = 1031229^2 + 194391^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1101221111295 and 1101221111304.

It is not an unprimeable number, because it can be changed into a prime (1101221111329) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3398830429 + ... + 3398830752.

Almost surely, 2^{1101221111322} is an apocalyptic number.

1101221111322 is an abundant number, since it is smaller than the sum of its proper divisors (1366329897744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1101221111322 is an equidigital number, since it uses as much as digits as its factorization.

1101221111322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6797661195 (or 6797661186 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1101221111322 its reverse (2231111221011), we get a palindrome (3332332332333).

The spelling of 1101221111322 in words is "one trillion, one hundred one billion, two hundred twenty-one million, one hundred eleven thousand, three hundred twenty-two".