1121220122 has 12 divisors (see below), whose sum is σ = 1848623658. Its totient is φ = 509645400.

The previous prime is 1121220103. The next prime is 1121220157. The reversal of 1121220122 is 2210221211.

It can be written as a sum of positive squares in only one way, i.e., 1038063961 + 83156161 = 32219^2 + 9119^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1121220097 and 1121220106.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2316329 + ... + 2316812.

Almost surely, 2^1121220122 is an apocalyptic number.

1121220122 is a deficient number, since it is larger than the sum of its proper divisors (727403536).

1121220122 is a wasteful number, since it uses less digits than its factorization.

1121220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4633165 (or 4633154 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1121220122 is about 33484.6251584216. The cubic root of 1121220122 is about 1038.8757951957.

Adding to 1121220122 its reverse (2210221211), we get a palindrome (3331441333).

The spelling of 1121220122 in words is "one billion, one hundred twenty-one million, two hundred twenty thousand, one hundred twenty-two".