121022101021001 has 2 divisors, whose sum is σ = 121022101021002. Its totient is φ = 121022101021000.

The previous prime is 121022101020991. The next prime is 121022101021043. The reversal of 121022101021001 is 100120101220121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118470685811776 + 2551415209225 = 10884424^2 + 1597315^2 .

It is a cyclic number.

It is not a de Polignac number, because 121022101021001 - 2¹⁴ = 121022101004617 is a prime.

It is a super-3 number, since 3×121022101021001³ (a number of 43 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (121022101021201) 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, 60511050510500 + 60511050510501.

It is an arithmetic number, because the mean of its divisors is an integer number (60511050510501).

Almost surely, 2^{121022101021001} is an apocalyptic number.

It is an amenable number.

121022101021001 is a deficient number, since it is larger than the sum of its proper divisors (1).

121022101021001 is an equidigital number, since it uses as much as digits as its factorization.

121022101021001 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 14.

Adding to 121022101021001 its reverse (100120101220121), we get a palindrome (221142202241122).

The spelling of 121022101021001 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred one million, twenty-one thousand, one".