149012221012169 has 2 divisors, whose sum is σ = 149012221012170. Its totient is φ = 149012221012168.

The previous prime is 149012221012147. The next prime is 149012221012181. The reversal of 149012221012169 is 961210122210941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82237909894144 + 66774311118025 = 9068512^2 + 8171555^2 .

It is an emirp because it is prime and its reverse (961210122210941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149012221012169 is a prime.

It is a super-2 number, since 2×149012221012169² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (149012221312169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74506110506084 + 74506110506085.

It is an arithmetic number, because the mean of its divisors is an integer number (74506110506085).

Almost surely, 2^{149012221012169} is an apocalyptic number.

It is an amenable number.

149012221012169 is a deficient number, since it is larger than the sum of its proper divisors (1).

149012221012169 is an equidigital number, since it uses as much as digits as its factorization.

149012221012169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 41.

The spelling of 149012221012169 in words is "one hundred forty-nine trillion, twelve billion, two hundred twenty-one million, twelve thousand, one hundred sixty-nine".