1220121122 has 8 divisors (see below), whose sum is σ = 1996561872. Its totient is φ = 554600500.

The previous prime is 1220121113. The next prime is 1220121137. The reversal of 1220121122 is 2211210221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1220121097 and 1220121106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27730004 + ... + 27730047.

It is an arithmetic number, because the mean of its divisors is an integer number (249570234).

Almost surely, 2^1220121122 is an apocalyptic number.

1220121122 is a deficient number, since it is larger than the sum of its proper divisors (776440750).

1220121122 is a wasteful number, since it uses less digits than its factorization.

1220121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55460064.

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

The square root of 1220121122 is about 34930.2322064999. The cubic root of 1220121122 is about 1068.5650903060.

Adding to 1220121122 its reverse (2211210221), we get a palindrome (3431331343).

The spelling of 1220121122 in words is "one billion, two hundred twenty million, one hundred twenty-one thousand, one hundred twenty-two".