100021322 has 4 divisors (see below), whose sum is σ = 150031986. Its totient is φ = 50010660.

The previous prime is 100021309. The next prime is 100021331. The reversal of 100021322 is 223120001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 223120001 = 13 ⋅17163077.

It can be written as a sum of positive squares in only one way, i.e., 93915481 + 6105841 = 9691^2 + 2471^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25005329 + ... + 25005332.

Almost surely, 2^100021322 is an apocalyptic number.

100021322 is a deficient number, since it is larger than the sum of its proper divisors (50010664).

100021322 is an equidigital number, since it uses as much as digits as its factorization.

100021322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50010663.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 100021322 is about 10001.0660431776. The cubic root of 100021322 is about 464.1918703359.

Adding to 100021322 its reverse (223120001), we get a palindrome (323141323).

It can be divided in two parts, 1000 and 21322, that added together give a palindrome (22322).

The spelling of 100021322 in words is "one hundred million, twenty-one thousand, three hundred twenty-two".