1201220002981 has 2 divisors, whose sum is σ = 1201220002982. Its totient is φ = 1201220002980.

The previous prime is 1201220002903. The next prime is 1201220003021. The reversal of 1201220002981 is 1892000221021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1185139226881 + 16080776100 = 1088641^2 + 126810^2 .

It is an emirp because it is prime and its reverse (1892000221021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201220002981 - 2¹³ = 1201219994789 is a prime.

It is a super-2 number, since 2×1201220002981² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201220009981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600610001490 + 600610001491.

It is an arithmetic number, because the mean of its divisors is an integer number (600610001491).

Almost surely, 2^{1201220002981} is an apocalyptic number.

It is an amenable number.

1201220002981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201220002981 is an equidigital number, since it uses as much as digits as its factorization.

1201220002981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 1201220002981 in words is "one trillion, two hundred one billion, two hundred twenty million, two thousand, nine hundred eighty-one".