21101301322 has 4 divisors (see below), whose sum is σ = 31651951986. Its totient is φ = 10550650660.

The previous prime is 21101301313. The next prime is 21101301343. The reversal of 21101301322 is 22310310112.

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

It can be written as a sum of positive squares in only one way, i.e., 20822778601 + 278522721 = 144301^2 + 16689^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21101301296 and 21101301305.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5275325329 + ... + 5275325332.

Almost surely, 2^21101301322 is an apocalyptic number.

21101301322 is a deficient number, since it is larger than the sum of its proper divisors (10550650664).

21101301322 is a wasteful number, since it uses less digits than its factorization.

21101301322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10550650663.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21101301322 its reverse (22310310112), we get a palindrome (43411611434).

The spelling of 21101301322 in words is "twenty-one billion, one hundred one million, three hundred one thousand, three hundred twenty-two".