101000121199489 has 2 divisors, whose sum is σ = 101000121199490. Its totient is φ = 101000121199488.

The previous prime is 101000121199429. The next prime is 101000121199493. The reversal of 101000121199489 is 984991121000101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51958392319089 + 49041728880400 = 7208217^2 + 7002980^2 .

It is a cyclic number.

It is not a de Polignac number, because 101000121199489 - 2⁷ = 101000121199361 is a prime.

It is a super-2 number, since 2×101000121199489² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101000121199409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500060599744 + 50500060599745.

It is an arithmetic number, because the mean of its divisors is an integer number (50500060599745).

Almost surely, 2^{101000121199489} is an apocalyptic number.

It is an amenable number.

101000121199489 is a deficient number, since it is larger than the sum of its proper divisors (1).

101000121199489 is an equidigital number, since it uses as much as digits as its factorization.

101000121199489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 46.

The spelling of 101000121199489 in words is "one hundred one trillion, one hundred twenty-one million, one hundred ninety-nine thousand, four hundred eighty-nine".