1202012121061 has 2 divisors, whose sum is σ = 1202012121062. Its totient is φ = 1202012121060.

The previous prime is 1202012121053. The next prime is 1202012121109. The reversal of 1202012121061 is 1601212102021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1157332730436 + 44679390625 = 1075794^2 + 211375^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202012121061 - 2³ = 1202012121053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202012121361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601006060530 + 601006060531.

It is an arithmetic number, because the mean of its divisors is an integer number (601006060531).

Almost surely, 2^{1202012121061} is an apocalyptic number.

It is an amenable number.

1202012121061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202012121061 is an equidigital number, since it uses as much as digits as its factorization.

1202012121061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1202012121061 its reverse (1601212102021), we get a palindrome (2803224223082).

The spelling of 1202012121061 in words is "one trillion, two hundred two billion, twelve million, one hundred twenty-one thousand, sixty-one".