21202100034 has 8 divisors (see below), whose sum is σ = 42404200080. Its totient is φ = 7067366676.

The previous prime is 21202100033. The next prime is 21202100089. The reversal of 21202100034 is 43000120212.

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

21202100034 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21202099986 and 21202100022.

It is not an unprimeable number, because it can be changed into a prime (21202100033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1766841664 + ... + 1766841675.

It is an arithmetic number, because the mean of its divisors is an integer number (5300525010).

Almost surely, 2^21202100034 is an apocalyptic number.

21202100034 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21202100034 is a wasteful number, since it uses less digits than its factorization.

21202100034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3533683344.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 21202100034 its reverse (43000120212), we get a palindrome (64202220246).

The spelling of 21202100034 in words is "twenty-one billion, two hundred two million, one hundred thousand, thirty-four".