421120121213 has 32 divisors (see below), whose sum is σ = 482210150400. Its totient is φ = 364360671360.

The previous prime is 421120121173. The next prime is 421120121221. The reversal of 421120121213 is 312121021124.

It is a cyclic number.

It is not a de Polignac number, because 421120121213 - 2²⁶ = 421053012349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421120121243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5004713 + ... + 5088161.

It is an arithmetic number, because the mean of its divisors is an integer number (15069067200).

Almost surely, 2^421120121213 is an apocalyptic number.

421120121213 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

421120121213 is a deficient number, since it is larger than the sum of its proper divisors (61090029187).

421120121213 is a wasteful number, since it uses less digits than its factorization.

421120121213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83777.

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

Adding to 421120121213 its reverse (312121021124), we get a palindrome (733241142337).

The spelling of 421120121213 in words is "four hundred twenty-one billion, one hundred twenty million, one hundred twenty-one thousand, two hundred thirteen".