12120020221973 has 2 divisors, whose sum is σ = 12120020221974. Its totient is φ = 12120020221972.

The previous prime is 12120020221961. The next prime is 12120020222053. The reversal of 12120020221973 is 37912202002121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11189138730289 + 930881491684 = 3345017^2 + 964822^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120020221973 - 2¹⁰ = 12120020220949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120020221073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060010110986 + 6060010110987.

It is an arithmetic number, because the mean of its divisors is an integer number (6060010110987).

Almost surely, 2^{12120020221973} is an apocalyptic number.

It is an amenable number.

12120020221973 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120020221973 is an equidigital number, since it uses as much as digits as its factorization.

12120020221973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 12120020221973 in words is "twelve trillion, one hundred twenty billion, twenty million, two hundred twenty-one thousand, nine hundred seventy-three".