21002122030334 has 4 divisors (see below), whose sum is σ = 31503183045504. Its totient is φ = 10501061015166.

The previous prime is 21002122030273. The next prime is 21002122030399. The reversal of 21002122030334 is 43303022120012.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5250530507582 + ... + 5250530507585.

It is an arithmetic number, because the mean of its divisors is an integer number (7875795761376).

Almost surely, 2^{21002122030334} is an apocalyptic number.

21002122030334 is a deficient number, since it is larger than the sum of its proper divisors (10501061015170).

21002122030334 is a wasteful number, since it uses less digits than its factorization.

21002122030334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10501061015169.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21002122030334 its reverse (43303022120012), we get a palindrome (64305144150346).

The spelling of 21002122030334 in words is "twenty-one trillion, two billion, one hundred twenty-two million, thirty thousand, three hundred thirty-four".