1201022233020 has 36 divisors (see below), whose sum is σ = 3643100774040. Its totient is φ = 320272595424.

The previous prime is 1201022233013. The next prime is 1201022233141. The reversal of 1201022233020 is 203322201021.

It is a tau number, because it is divible by the number of its divisors (36).

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 = 1201022232984 and 1201022233002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3336172690 + ... + 3336173049.

Almost surely, 2^{1201022233020} is an apocalyptic number.

1201022233020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201022233020 is an abundant number, since it is smaller than the sum of its proper divisors (2442078541020).

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

1201022233020 is a wasteful number, since it uses less digits than its factorization.

1201022233020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6672345754 (or 6672345749 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1201022233020 its reverse (203322201021), we get a palindrome (1404344434041).

The spelling of 1201022233020 in words is "one trillion, two hundred one billion, twenty-two million, two hundred thirty-three thousand, twenty".