100121011821469 has 2 divisors, whose sum is σ = 100121011821470. Its totient is φ = 100121011821468.

The previous prime is 100121011821419. The next prime is 100121011821497. The reversal of 100121011821469 is 964128110121001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95066653545369 + 5054358276100 = 9750213^2 + 2248190^2 .

It is a cyclic number.

It is not a de Polignac number, because 100121011821469 - 2²⁷ = 100120877603741 is a prime.

It is a super-2 number, since 2×100121011821469² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100121011821419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060505910734 + 50060505910735.

It is an arithmetic number, because the mean of its divisors is an integer number (50060505910735).

Almost surely, 2^{100121011821469} is an apocalyptic number.

It is an amenable number.

100121011821469 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121011821469 is an equidigital number, since it uses as much as digits as its factorization.

100121011821469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 37.

The spelling of 100121011821469 in words is "one hundred trillion, one hundred twenty-one billion, eleven million, eight hundred twenty-one thousand, four hundred sixty-nine".