121202208914869 has 2 divisors, whose sum is σ = 121202208914870. Its totient is φ = 121202208914868.

The previous prime is 121202208914791. The next prime is 121202208914873. The reversal of 121202208914869 is 968419802202121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70606543672900 + 50595665241969 = 8402770^2 + 7113063^2 .

It is a cyclic number.

It is not a de Polignac number, because 121202208914869 - 2³¹ = 121200061431221 is a prime.

It is a super-2 number, since 2×121202208914869² (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 (121202208914879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60601104457434 + 60601104457435.

It is an arithmetic number, because the mean of its divisors is an integer number (60601104457435).

Almost surely, 2^{121202208914869} is an apocalyptic number.

It is an amenable number.

121202208914869 is a deficient number, since it is larger than the sum of its proper divisors (1).

121202208914869 is an equidigital number, since it uses as much as digits as its factorization.

121202208914869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1990656, while the sum is 55.

The spelling of 121202208914869 in words is "one hundred twenty-one trillion, two hundred two billion, two hundred eight million, nine hundred fourteen thousand, eight hundred sixty-nine".