21021030121322 has 16 divisors (see below), whose sum is σ = 39312056331072. Its totient is φ = 8190011735520.

The previous prime is 21021030121321. The next prime is 21021030121369. The reversal of 21021030121322 is 22312103012012.

It is a junction number, because it is equal to n+sod(n) for n = 21021030121294 and 21021030121303.

It is not an unprimeable number, because it can be changed into a prime (21021030121321) 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, 68250097643 + ... + 68250097950.

It is an arithmetic number, because the mean of its divisors is an integer number (2457003520692).

Almost surely, 2^{21021030121322} is an apocalyptic number.

21021030121322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21021030121322 is a deficient number, since it is larger than the sum of its proper divisors (18291026209750).

21021030121322 is a wasteful number, since it uses less digits than its factorization.

21021030121322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136500195613.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21021030121322 its reverse (22312103012012), we get a palindrome (43333133133334).

The spelling of 21021030121322 in words is "twenty-one trillion, twenty-one billion, thirty million, one hundred twenty-one thousand, three hundred twenty-two".