121202210212101 has 12 divisors (see below), whose sum is σ = 175841092058112. Its totient is φ = 80445519845736.

The previous prime is 121202210212091. The next prime is 121202210212103. The reversal of 121202210212101 is 101212012202121.

121202210212101 is a `hidden beast` number, since 1 + 21 + 202 + 210 + 21 + 210 + 1 = 666.

It is not a de Polignac number, because 121202210212101 - 2¹³ = 121202210203909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202210212103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29662800261 + ... + 29662804346.

It is an arithmetic number, because the mean of its divisors is an integer number (14653424338176).

Almost surely, 2^{121202210212101} is an apocalyptic number.

It is an amenable number.

121202210212101 is a deficient number, since it is larger than the sum of its proper divisors (54638881846011).

121202210212101 is a wasteful number, since it uses less digits than its factorization.

121202210212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59325604840 (or 59325604837 counting only the distinct ones).

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

Adding to 121202210212101 its reverse (101212012202121), we get a palindrome (222414222414222).

The spelling of 121202210212101 in words is "one hundred twenty-one trillion, two hundred two billion, two hundred ten million, two hundred twelve thousand, one hundred one".