103772720212021 has 16 divisors (see below), whose sum is σ = 120835629218304. Its totient is φ = 87269385101184.

The previous prime is 103772720212001. The next prime is 103772720212081. The reversal of 103772720212021 is 120212027277301.

It is a cyclic number.

It is not a de Polignac number, because 103772720212021 - 2⁹ = 103772720211509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103772720212001) by changing a digit.

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, 104928580 + ... + 105912946.

It is an arithmetic number, because the mean of its divisors is an integer number (7552226826144).

Almost surely, 2^{103772720212021} is an apocalyptic number.

It is an amenable number.

103772720212021 is a deficient number, since it is larger than the sum of its proper divisors (17062909006283).

103772720212021 is an equidigital number, since it uses as much as digits as its factorization.

103772720212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268580.

The product of its (nonzero) digits is 32928, while the sum is 37.

Adding to 103772720212021 its reverse (120212027277301), we get a palindrome (223984747489322).

The spelling of 103772720212021 in words is "one hundred three trillion, seven hundred seventy-two billion, seven hundred twenty million, two hundred twelve thousand, twenty-one".