21122413104 has 40 divisors (see below), whose sum is σ = 58763638192. Its totient is φ = 6499203840.

The previous prime is 21122413093. The next prime is 21122413121. The reversal of 21122413104 is 40131422112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16924387 + ... + 16925634.

Almost surely, 2^21122413104 is an apocalyptic number.

21122413104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21122413104 is an abundant number, since it is smaller than the sum of its proper divisors (37641225088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21122413104 is a wasteful number, since it uses less digits than its factorization.

21122413104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33850045 (or 33850039 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21122413104 its reverse (40131422112), we get a palindrome (61253835216).

The spelling of 21122413104 in words is "twenty-one billion, one hundred twenty-two million, four hundred thirteen thousand, one hundred four".