121202009077 has 2 divisors, whose sum is σ = 121202009078. Its totient is φ = 121202009076.

The previous prime is 121202009057. The next prime is 121202009101. The reversal of 121202009077 is 770900202121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110360826436 + 10841182641 = 332206^2 + 104121^2 .

It is a cyclic number.

It is not a de Polignac number, because 121202009077 - 2¹⁵ = 121201976309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121202009017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60601004538 + 60601004539.

It is an arithmetic number, because the mean of its divisors is an integer number (60601004539).

Almost surely, 2^121202009077 is an apocalyptic number.

It is an amenable number.

121202009077 is a deficient number, since it is larger than the sum of its proper divisors (1).

121202009077 is an equidigital number, since it uses as much as digits as its factorization.

121202009077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 31.

The spelling of 121202009077 in words is "one hundred twenty-one billion, two hundred two million, nine thousand, seventy-seven".