1201022021103 has 16 divisors (see below), whose sum is σ = 1631746719360. Its totient is φ = 785492476704.

The previous prime is 1201022021057. The next prime is 1201022021141. The reversal of 1201022021103 is 3011202201021.

It is not a de Polignac number, because 1201022021103 - 2⁹ = 1201022020591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201022020103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1160700 + ... + 1936302.

It is an arithmetic number, because the mean of its divisors is an integer number (101984169960).

Almost surely, 2^{1201022021103} is an apocalyptic number.

1201022021103 is a deficient number, since it is larger than the sum of its proper divisors (430724698257).

1201022021103 is an equidigital number, since it uses as much as digits as its factorization.

1201022021103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785398.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1201022021103 its reverse (3011202201021), we get a palindrome (4212224222124).

The spelling of 1201022021103 in words is "one trillion, two hundred one billion, twenty-two million, twenty-one thousand, one hundred three".