73132210121 has 16 divisors (see below), whose sum is σ = 80510973840. Its totient is φ = 66119424000.

The previous prime is 73132210097. The next prime is 73132210127. The reversal of 73132210121 is 12101223137.

It can be written as a sum of positive squares in 8 ways, for example, as 16280484025 + 56851726096 = 127595^2 + 238436^2 .

It is a cyclic number.

It is not a de Polignac number, because 73132210121 - 2¹⁴ = 73132193737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73132210127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279380 + ... + 473621.

It is an arithmetic number, because the mean of its divisors is an integer number (5031935865).

Almost surely, 2^73132210121 is an apocalyptic number.

It is an amenable number.

73132210121 is a deficient number, since it is larger than the sum of its proper divisors (7378763719).

73132210121 is a wasteful number, since it uses less digits than its factorization.

73132210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753244.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 73132210121 its reverse (12101223137), we get a palindrome (85233433258).

The spelling of 73132210121 in words is "seventy-three billion, one hundred thirty-two million, two hundred ten thousand, one hundred twenty-one".