102400214221 has 16 divisors (see below), whose sum is σ = 119092464000. Its totient is φ = 87334460928.

The previous prime is 102400214219. The next prime is 102400214237. The reversal of 102400214221 is 122412004201.

It is a cyclic number.

It is not a de Polignac number, because 102400214221 - 2¹ = 102400214219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102400214321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6884496 + ... + 6899353.

It is an arithmetic number, because the mean of its divisors is an integer number (7443279000).

Almost surely, 2^102400214221 is an apocalyptic number.

It is an amenable number.

102400214221 is a deficient number, since it is larger than the sum of its proper divisors (16692249779).

102400214221 is a wasteful number, since it uses less digits than its factorization.

102400214221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13783908.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 102400214221 its reverse (122412004201), we get a palindrome (224812218422).

The spelling of 102400214221 in words is "one hundred two billion, four hundred million, two hundred fourteen thousand, two hundred twenty-one".