121022012103221 has 2 divisors, whose sum is σ = 121022012103222. Its totient is φ = 121022012103220.

The previous prime is 121022012103173. The next prime is 121022012103227. The reversal of 121022012103221 is 122301210220121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65579304591025 + 55442707512196 = 8098105^2 + 7445986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121022012103221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121022012103193 and 121022012103202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121022012103227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60511006051610 + 60511006051611.

It is an arithmetic number, because the mean of its divisors is an integer number (60511006051611).

Almost surely, 2^{121022012103221} is an apocalyptic number.

It is an amenable number.

121022012103221 is a deficient number, since it is larger than the sum of its proper divisors (1).

121022012103221 is an equidigital number, since it uses as much as digits as its factorization.

121022012103221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 121022012103221 its reverse (122301210220121), we get a palindrome (243323222323342).

The spelling of 121022012103221 in words is "one hundred twenty-one trillion, twenty-two billion, twelve million, one hundred three thousand, two hundred twenty-one".