121022021212101 has 12 divisors (see below), whose sum is σ = 175153023502860. Its totient is φ = 80522837948160.

The previous prime is 121022021212091. The next prime is 121022021212111. The reversal of 121022021212101 is 101212120220121.

121022021212101 is a `hidden beast` number, since 1 + 21 + 0 + 220 + 212 + 1 + 210 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (121022021212091) and next prime (121022021212111).

It can be written as a sum of positive squares in 2 ways, for example, as 109445702256900 + 11576318955201 = 10461630^2 + 3402399^2 .

It is not a de Polignac number, because 121022021212101 - 2⁹ = 121022021211589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022021212111) 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 in 11 ways as a sum of consecutive naturals, for example, 13209122380 + ... + 13209131541.

It is an arithmetic number, because the mean of its divisors is an integer number (14596085291905).

Almost surely, 2^{121022021212101} is an apocalyptic number.

It is an amenable number.

121022021212101 is a deficient number, since it is larger than the sum of its proper divisors (54131002290759).

121022021212101 is a wasteful number, since it uses less digits than its factorization.

121022021212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26418254436 (or 26418254433 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121022021212101 its reverse (101212120220121), we get a palindrome (222234141432222).

The spelling of 121022021212101 in words is "one hundred twenty-one trillion, twenty-two billion, twenty-one million, two hundred twelve thousand, one hundred one".