121202021001021 has 8 divisors (see below), whose sum is σ = 161689067040384. Its totient is φ = 80758161147840.

The previous prime is 121202021000987. The next prime is 121202021001049. The reversal of 121202021001021 is 120100120202121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121202021001021 - 2⁹ = 121202021000509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202021001071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10796539996 + ... + 10796551221.

It is an arithmetic number, because the mean of its divisors is an integer number (20211133380048).

Almost surely, 2^{121202021001021} is an apocalyptic number.

It is an amenable number.

121202021001021 is a deficient number, since it is larger than the sum of its proper divisors (40487046039363).

121202021001021 is a wasteful number, since it uses less digits than its factorization.

121202021001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21593093091.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121202021001021 its reverse (120100120202121), we get a palindrome (241302141203142).

The spelling of 121202021001021 in words is "one hundred twenty-one trillion, two hundred two billion, twenty-one million, one thousand, twenty-one".