121020210037 has 2 divisors, whose sum is σ = 121020210038. Its totient is φ = 121020210036.

The previous prime is 121020210013. The next prime is 121020210053. The reversal of 121020210037 is 730012020121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120205050436 + 815159601 = 346706^2 + 28551^2 .

It is an emirp because it is prime and its reverse (730012020121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121020210037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121020209996 and 121020210023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121020217037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510105018 + 60510105019.

It is an arithmetic number, because the mean of its divisors is an integer number (60510105019).

Almost surely, 2^121020210037 is an apocalyptic number.

It is an amenable number.

121020210037 is a deficient number, since it is larger than the sum of its proper divisors (1).

121020210037 is an equidigital number, since it uses as much as digits as its factorization.

121020210037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 121020210037 its reverse (730012020121), we get a palindrome (851032230158).

The spelling of 121020210037 in words is "one hundred twenty-one billion, twenty million, two hundred ten thousand, thirty-seven".