21022100101204 has 12 divisors (see below), whose sum is σ = 38724921239200. Its totient is φ = 9957836890008.

The previous prime is 21022100101141. The next prime is 21022100101351. The reversal of 21022100101204 is 40210100122012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138303290064 + ... + 138303290215.

Almost surely, 2^{21022100101204} is an apocalyptic number.

It is an amenable number.

21022100101204 is a deficient number, since it is larger than the sum of its proper divisors (17702821137996).

21022100101204 is a wasteful number, since it uses less digits than its factorization.

21022100101204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276606580302 (or 276606580300 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21022100101204 its reverse (40210100122012), we get a palindrome (61232200223216).

The spelling of 21022100101204 in words is "twenty-one trillion, twenty-two billion, one hundred million, one hundred one thousand, two hundred four".