1021200003501 has 8 divisors (see below), whose sum is σ = 1365155097600. Its totient is φ = 679022455872.

The previous prime is 1021200003469. The next prime is 1021200003539. The reversal of 1021200003501 is 1053000021201.

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

It is not a de Polignac number, because 1021200003501 - 2⁵ = 1021200003469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021200053501) 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, 444385276 + ... + 444387573.

It is an arithmetic number, because the mean of its divisors is an integer number (170644387200).

Almost surely, 2^{1021200003501} is an apocalyptic number.

It is an amenable number.

1021200003501 is a deficient number, since it is larger than the sum of its proper divisors (343955094099).

1021200003501 is an equidigital number, since it uses as much as digits as its factorization.

1021200003501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888773235.

The product of its (nonzero) digits is 60, while the sum is 15.

Adding to 1021200003501 its reverse (1053000021201), we get a palindrome (2074200024702).

The spelling of 1021200003501 in words is "one trillion, twenty-one billion, two hundred million, three thousand, five hundred one".