1201022010020 has 48 divisors (see below), whose sum is σ = 2889862859520. Its totient is φ = 410720398464.

The previous prime is 1201022010011. The next prime is 1201022010053. The reversal of 1201022010020 is 200102201021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1201022009983 and 1201022010010.

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 15 ways as a sum of consecutive naturals, for example, 10972184 + ... + 11081103.

It is an arithmetic number, because the mean of its divisors is an integer number (60205476240).

Almost surely, 2^{1201022010020} is an apocalyptic number.

1201022010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201022010020 is an abundant number, since it is smaller than the sum of its proper divisors (1688840849500).

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

1201022010020 is a wasteful number, since it uses less digits than its factorization.

1201022010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22053692 (or 22053690 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1201022010020 its reverse (200102201021), we get a palindrome (1401124211041).

The spelling of 1201022010020 in words is "one trillion, two hundred one billion, twenty-two million, ten thousand, twenty".