102322121421 has 8 divisors (see below), whose sum is σ = 146924071840. Its totient is φ = 62967459312.

The previous prime is 102322121413. The next prime is 102322121437. The reversal of 102322121421 is 124121223201.

It is a happy number.

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

It is not a de Polignac number, because 102322121421 - 2³ = 102322121413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102322121921) 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, 1311822031 + ... + 1311822108.

It is an arithmetic number, because the mean of its divisors is an integer number (18365508980).

Almost surely, 2^102322121421 is an apocalyptic number.

It is an amenable number.

102322121421 is a deficient number, since it is larger than the sum of its proper divisors (44601950419).

102322121421 is a wasteful number, since it uses less digits than its factorization.

102322121421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623644155.

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

Adding to 102322121421 its reverse (124121223201), we get a palindrome (226443344622).

The spelling of 102322121421 in words is "one hundred two billion, three hundred twenty-two million, one hundred twenty-one thousand, four hundred twenty-one".