1220121301122 has 96 divisors (see below), whose sum is σ = 2705273588160. Its totient is φ = 397360080000.

The previous prime is 1220121301121. The next prime is 1220121301177. The reversal of 1220121301122 is 2211031210221.

1220121301122 is a `hidden beast` number, since 1 + 220 + 1 + 21 + 301 + 122 = 666.

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 = 1220121301095 and 1220121301104.

It is not an unprimeable number, because it can be changed into a prime (1220121301121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42615972 + ... + 42644592.

It is an arithmetic number, because the mean of its divisors is an integer number (28179933210).

Almost surely, 2^{1220121301122} is an apocalyptic number.

1220121301122 is an abundant number, since it is smaller than the sum of its proper divisors (1485152287038).

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

1220121301122 is a wasteful number, since it uses less digits than its factorization.

1220121301122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29040 (or 29037 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1220121301122 its reverse (2211031210221), we get a palindrome (3431152511343).

Subtracting 1220121301122 from its reverse (2211031210221), we obtain a palindrome (990909909099).

The spelling of 1220121301122 in words is "one trillion, two hundred twenty billion, one hundred twenty-one million, three hundred one thousand, one hundred twenty-two".