121021220121203 has 8 divisors (see below), whose sum is σ = 121352311246656. Its totient is φ = 120690366768000.

The previous prime is 121021220121181. The next prime is 121021220121239. The reversal of 121021220121203 is 302121022120121.

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

It is a cyclic number.

It is not a de Polignac number, because 121021220121203 - 2¹⁶ = 121021220055667 is a prime.

It is a super-2 number, since 2×121021220121203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121021220151203) 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, 58423688 + ... + 60459653.

It is an arithmetic number, because the mean of its divisors is an integer number (15169038905832).

Almost surely, 2^{121021220121203} is an apocalyptic number.

121021220121203 is a deficient number, since it is larger than the sum of its proper divisors (331091125453).

121021220121203 is a wasteful number, since it uses less digits than its factorization.

121021220121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118886125.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 121021220121203 its reverse (302121022120121), we get a palindrome (423142242241324).

The spelling of 121021220121203 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred twenty million, one hundred twenty-one thousand, two hundred three".