321212422101 has 4 divisors (see below), whose sum is σ = 428283229472. Its totient is φ = 214141614732.

The previous prime is 321212422087. The next prime is 321212422159. The reversal of 321212422101 is 101224212123.

It is a happy number.

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 not a de Polignac number, because 321212422101 - 2²² = 321208227797 is a prime.

It is a super-2 number, since 2×321212422101² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321212422301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53535403681 + ... + 53535403686.

It is an arithmetic number, because the mean of its divisors is an integer number (107070807368).

Almost surely, 2^321212422101 is an apocalyptic number.

It is an amenable number.

321212422101 is a deficient number, since it is larger than the sum of its proper divisors (107070807371).

321212422101 is a wasteful number, since it uses less digits than its factorization.

321212422101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107070807370.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 321212422101 its reverse (101224212123), we get a palindrome (422436634224).

The spelling of 321212422101 in words is "three hundred twenty-one billion, two hundred twelve million, four hundred twenty-two thousand, one hundred one".