2012121220973 has 2 divisors, whose sum is σ = 2012121220974. Its totient is φ = 2012121220972.

The previous prime is 2012121220951. The next prime is 2012121221003. The reversal of 2012121220973 is 3790221212102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1035340845289 + 976780375684 = 1017517^2 + 988322^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012121220973 - 2¹⁶ = 2012121155437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012121220273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006060610486 + 1006060610487.

It is an arithmetic number, because the mean of its divisors is an integer number (1006060610487).

Almost surely, 2^{2012121220973} is an apocalyptic number.

It is an amenable number.

2012121220973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012121220973 is an equidigital number, since it uses as much as digits as its factorization.

2012121220973 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 2012121220973 in words is "two trillion, twelve billion, one hundred twenty-one million, two hundred twenty thousand, nine hundred seventy-three".