121202210222101 has 2 divisors, whose sum is σ = 121202210222102. Its totient is φ = 121202210222100.

The previous prime is 121202210222077. The next prime is 121202210222201. The reversal of 121202210222101 is 101222012202121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83029892581476 + 38172317640625 = 9112074^2 + 6178375^2 .

It is an emirp because it is prime and its reverse (101222012202121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121202210222101 is a prime.

It is a super-3 number, since 3×121202210222101³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121202210222201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60601105111050 + 60601105111051.

It is an arithmetic number, because the mean of its divisors is an integer number (60601105111051).

Almost surely, 2^{121202210222101} is an apocalyptic number.

It is an amenable number.

121202210222101 is a deficient number, since it is larger than the sum of its proper divisors (1).

121202210222101 is an equidigital number, since it uses as much as digits as its factorization.

121202210222101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121202210222101 its reverse (101222012202121), we get a palindrome (222424222424222).

The spelling of 121202210222101 in words is "one hundred twenty-one trillion, two hundred two billion, two hundred ten million, two hundred twenty-two thousand, one hundred one".