121022477 has 2 divisors, whose sum is σ = 121022478. Its totient is φ = 121022476.

The previous prime is 121022459. The next prime is 121022513. The reversal of 121022477 is 774220121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109537156 + 11485321 = 10466^2 + 3389^2 .

It is an emirp because it is prime and its reverse (774220121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121022477 - 2⁶ = 121022413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121022417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60511238 + 60511239.

It is an arithmetic number, because the mean of its divisors is an integer number (60511239).

Almost surely, 2^121022477 is an apocalyptic number.

It is an amenable number.

121022477 is a deficient number, since it is larger than the sum of its proper divisors (1).

121022477 is an equidigital number, since it uses as much as digits as its factorization.

121022477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 121022477 is about 11001.0216343756. The cubic root of 121022477 is about 494.6393686566.

Adding to 121022477 its reverse (774220121), we get a palindrome (895242598).

The spelling of 121022477 in words is "one hundred twenty-one million, twenty-two thousand, four hundred seventy-seven".