121202001120221 has 8 divisors (see below), whose sum is σ = 139446214137600. Its totient is φ = 103190198460048.

The previous prime is 121202001120197. The next prime is 121202001120229. The reversal of 121202001120221 is 122021100202121.

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

It is not a de Polignac number, because 121202001120221 - 2¹⁴ = 121202001103837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121202001120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202001120229) 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, 58102588181 + ... + 58102590266.

It is an arithmetic number, because the mean of its divisors is an integer number (17430776767200).

Almost surely, 2^{121202001120221} is an apocalyptic number.

It is an amenable number.

121202001120221 is a deficient number, since it is larger than the sum of its proper divisors (18244213017379).

121202001120221 is a wasteful number, since it uses less digits than its factorization.

121202001120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116205178603.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121202001120221 its reverse (122021100202121), we get a palindrome (243223101322342).

The spelling of 121202001120221 in words is "one hundred twenty-one trillion, two hundred two billion, one million, one hundred twenty thousand, two hundred twenty-one".