1220201011023 has 8 divisors (see below), whose sum is σ = 1630709473536. Its totient is φ = 811579944600.

The previous prime is 1220201011013. The next prime is 1220201011061. The reversal of 1220201011023 is 3201101020221.

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

It is not a de Polignac number, because 1220201011023 - 2¹⁷ = 1220200879951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220201010993 and 1220201011011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220201011013) 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, 471847513 + ... + 471850098.

It is an arithmetic number, because the mean of its divisors is an integer number (203838684192).

Almost surely, 2^{1220201011023} is an apocalyptic number.

1220201011023 is a deficient number, since it is larger than the sum of its proper divisors (410508462513).

1220201011023 is an equidigital number, since it uses as much as digits as its factorization.

1220201011023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943698045.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1220201011023 its reverse (3201101020221), we get a palindrome (4421302031244).

The spelling of 1220201011023 in words is "one trillion, two hundred twenty billion, two hundred one million, eleven thousand, twenty-three".