1201022012020 has 24 divisors (see below), whose sum is σ = 2522173483368. Its totient is φ = 480403612800.

The previous prime is 1201022012011. The next prime is 1201022012063. The reversal of 1201022012020 is 202102201021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 515285651556 + 685736360464 = 717834^2 + 828092^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1967010 + ... + 2504230.

It is an arithmetic number, because the mean of its divisors is an integer number (105090561807).

Almost surely, 2^{1201022012020} is an apocalyptic number.

1201022012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201022012020 is an abundant number, since it is smaller than the sum of its proper divisors (1321151471348).

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

1201022012020 is a wasteful number, since it uses less digits than its factorization.

1201022012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649011 (or 649009 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1201022012020 its reverse (202102201021), we get a palindrome (1403124213041).

The spelling of 1201022012020 in words is "one trillion, two hundred one billion, twenty-two million, twelve thousand, twenty".