212001330021103 has 4 divisors (see below), whose sum is σ = 242287234309840. Its totient is φ = 181715425732368.

The previous prime is 212001330021101. The next prime is 212001330021179. The reversal of 212001330021103 is 301120033100212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212001330021103 - 2¹ = 212001330021101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001330021101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15142952144358 + ... + 15142952144371.

It is an arithmetic number, because the mean of its divisors is an integer number (60571808577460).

Almost surely, 2^{212001330021103} is an apocalyptic number.

212001330021103 is a deficient number, since it is larger than the sum of its proper divisors (30285904288737).

212001330021103 is an equidigital number, since it uses as much as digits as its factorization.

212001330021103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30285904288736.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 212001330021103 its reverse (301120033100212), we get a palindrome (513121363121315).

The spelling of 212001330021103 in words is "two hundred twelve trillion, one billion, three hundred thirty million, twenty-one thousand, one hundred three".