21102132321229 has 8 divisors (see below), whose sum is σ = 21116319053760. Its totient is φ = 21087946848000.

The previous prime is 21102132321197. The next prime is 21102132321269. The reversal of 21102132321229 is 92212323120112.

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

It is a cyclic number.

It is not a de Polignac number, because 21102132321229 - 2⁵ = 21102132321197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21102132321229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21102132321269) 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, 34500984 + ... + 35107294.

It is an arithmetic number, because the mean of its divisors is an integer number (2639539881720).

Almost surely, 2^{21102132321229} is an apocalyptic number.

It is an amenable number.

21102132321229 is a deficient number, since it is larger than the sum of its proper divisors (14186732531).

21102132321229 is a wasteful number, since it uses less digits than its factorization.

21102132321229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629651.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 21102132321229 in words is "twenty-one trillion, one hundred two billion, one hundred thirty-two million, three hundred twenty-one thousand, two hundred twenty-nine".