1202122120081 has 2 divisors, whose sum is σ = 1202122120082. Its totient is φ = 1202122120080.

The previous prime is 1202122120007. The next prime is 1202122120091. The reversal of 1202122120081 is 1800212212021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 775484539456 + 426637580625 = 880616^2 + 653175^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202122120081 - 2¹⁹ = 1202121595793 is a prime.

It is a super-2 number, since 2×1202122120081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1202122120091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601061060040 + 601061060041.

It is an arithmetic number, because the mean of its divisors is an integer number (601061060041).

Almost surely, 2^{1202122120081} is an apocalyptic number.

It is an amenable number.

1202122120081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202122120081 is an equidigital number, since it uses as much as digits as its factorization.

1202122120081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 22.

The spelling of 1202122120081 in words is "one trillion, two hundred two billion, one hundred twenty-two million, one hundred twenty thousand, eighty-one".