1220020122031 has 4 divisors (see below), whose sum is σ = 1220026012992. Its totient is φ = 1220014231072.

The previous prime is 1220020122029. The next prime is 1220020122037. The reversal of 1220020122031 is 1302210200221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1220020122031 - 2¹ = 1220020122029 is a prime.

It is a super-2 number, since 2×1220020122031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220020121996 and 1220020122014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220020122037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2623066 + ... + 3052951.

It is an arithmetic number, because the mean of its divisors is an integer number (305006503248).

Almost surely, 2^{1220020122031} is an apocalyptic number.

1220020122031 is a deficient number, since it is larger than the sum of its proper divisors (5890961).

1220020122031 is an equidigital number, since it uses as much as digits as its factorization.

1220020122031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5890960.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1220020122031 its reverse (1302210200221), we get a palindrome (2522230322252).

The spelling of 1220020122031 in words is "one trillion, two hundred twenty billion, twenty million, one hundred twenty-two thousand, thirty-one".