121011000203221 has 4 divisors (see below), whose sum is σ = 122542785016000. Its totient is φ = 119479215390444.

The previous prime is 121011000203179. The next prime is 121011000203347. The reversal of 121011000203221 is 122302000110121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121011000203221 - 2²⁹ = 121010463332309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121011000203195 and 121011000203204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121011000206221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765892406271 + ... + 765892406428.

It is an arithmetic number, because the mean of its divisors is an integer number (30635696254000).

Almost surely, 2^{121011000203221} is an apocalyptic number.

It is an amenable number.

121011000203221 is a deficient number, since it is larger than the sum of its proper divisors (1531784812779).

121011000203221 is an equidigital number, since it uses as much as digits as its factorization.

121011000203221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531784812778.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121011000203221 its reverse (122302000110121), we get a palindrome (243313000313342).

The spelling of 121011000203221 in words is "one hundred twenty-one trillion, eleven billion, two hundred three thousand, two hundred twenty-one".