2002001121149 has 2 divisors, whose sum is σ = 2002001121150. Its totient is φ = 2002001121148.

The previous prime is 2002001121047. The next prime is 2002001121157. The reversal of 2002001121149 is 9411211002002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1994258001124 + 7743120025 = 1412182^2 + 87995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002001121149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002001126149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001000560574 + 1001000560575.

It is an arithmetic number, because the mean of its divisors is an integer number (1001000560575).

Almost surely, 2^{2002001121149} is an apocalyptic number.

It is an amenable number.

2002001121149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002001121149 is an equidigital number, since it uses as much as digits as its factorization.

2002001121149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 2002001121149 in words is "two trillion, two billion, one million, one hundred twenty-one thousand, one hundred forty-nine".