1220110121001 has 8 divisors (see below), whose sum is σ = 1626820369120. Its totient is φ = 813403310112.

The previous prime is 1220110120993. The next prime is 1220110121051. The reversal of 1220110121001 is 1001210110221.

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

It is not a de Polignac number, because 1220110121001 - 2³ = 1220110120993 is a prime.

It is a super-2 number, since 2×1220110121001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220110121051) 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, 132486 + ... + 1567728.

It is an arithmetic number, because the mean of its divisors is an integer number (203352546140).

Almost surely, 2^{1220110121001} is an apocalyptic number.

It is an amenable number.

1220110121001 is a deficient number, since it is larger than the sum of its proper divisors (406710248119).

1220110121001 is a wasteful number, since it uses less digits than its factorization.

1220110121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1718615.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1220110121001 its reverse (1001210110221), we get a palindrome (2221320231222).

The spelling of 1220110121001 in words is "one trillion, two hundred twenty billion, one hundred ten million, one hundred twenty-one thousand, one".