120021110001061 has 2 divisors, whose sum is σ = 120021110001062. Its totient is φ = 120021110001060.

The previous prime is 120021110001019. The next prime is 120021110001071. The reversal of 120021110001061 is 160100011120021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73665846260161 + 46355263740900 = 8582881^2 + 6808470^2 .

It is a cyclic number.

It is not a de Polignac number, because 120021110001061 - 2⁹ = 120021110000549 is a prime.

It is a super-2 number, since 2×120021110001061² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120021110001071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010555000530 + 60010555000531.

It is an arithmetic number, because the mean of its divisors is an integer number (60010555000531).

Almost surely, 2^{120021110001061} is an apocalyptic number.

It is an amenable number.

120021110001061 is a deficient number, since it is larger than the sum of its proper divisors (1).

120021110001061 is an equidigital number, since it uses as much as digits as its factorization.

120021110001061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 120021110001061 its reverse (160100011120021), we get a palindrome (280121121121082).

The spelling of 120021110001061 in words is "one hundred twenty trillion, twenty-one billion, one hundred ten million, one thousand, sixty-one".