121010222101 has 2 divisors, whose sum is σ = 121010222102. Its totient is φ = 121010222100.

The previous prime is 121010222087. The next prime is 121010222117. The reversal of 121010222101 is 101222010121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120843140625 + 167081476 = 347625^2 + 12926^2 .

It is an emirp because it is prime and its reverse (101222010121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121010222101 - 2¹⁷ = 121010091029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121010222191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505111050 + 60505111051.

It is an arithmetic number, because the mean of its divisors is an integer number (60505111051).

Almost surely, 2^121010222101 is an apocalyptic number.

It is an amenable number.

121010222101 is a deficient number, since it is larger than the sum of its proper divisors (1).

121010222101 is an equidigital number, since it uses as much as digits as its factorization.

121010222101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121010222101 its reverse (101222010121), we get a palindrome (222232232222).

The spelling of 121010222101 in words is "one hundred twenty-one billion, ten million, two hundred twenty-two thousand, one hundred one".