421212221021112 has 32 divisors (see below), whose sum is σ = 1063456597633680. Its totient is φ = 139013934329600.

The previous prime is 421212221021077. The next prime is 421212221021143. The reversal of 421212221021112 is 211120122212124.

It is a super-3 number, since 3×421212221021112³ (a number of 45 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86883706533 + ... + 86883711380.

Almost surely, 2^{421212221021112} is an apocalyptic number.

It is an amenable number.

421212221021112 is an abundant number, since it is smaller than the sum of its proper divisors (642244376612568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421212221021112 is a wasteful number, since it uses less digits than its factorization.

421212221021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173767418023 (or 173767418019 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

Adding to 421212221021112 its reverse (211120122212124), we get a palindrome (632332343233236).

The spelling of 421212221021112 in words is "four hundred twenty-one trillion, two hundred twelve billion, two hundred twenty-one million, twenty-one thousand, one hundred twelve".