1220110120121 has 8 divisors (see below), whose sum is σ = 1228544894400. Its totient is φ = 1211680011600.

The previous prime is 1220110120091. The next prime is 1220110120153. The reversal of 1220110120121 is 1210210110221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220110120121 - 2³⁰ = 1219036378297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1220110120096 and 1220110120105.

It is not an unprimeable number, because it can be changed into a prime (1220110120181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640811 + ... + 1688448.

It is an arithmetic number, because the mean of its divisors is an integer number (153568111800).

Almost surely, 2^{1220110120121} is an apocalyptic number.

It is an amenable number.

1220110120121 is a deficient number, since it is larger than the sum of its proper divisors (8434774279).

1220110120121 is a wasteful number, since it uses less digits than its factorization.

1220110120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332879.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1220110120121 its reverse (1210210110221), we get a palindrome (2430320230342).

The spelling of 1220110120121 in words is "one trillion, two hundred twenty billion, one hundred ten million, one hundred twenty thousand, one hundred twenty-one".