21224401033410 has 48 divisors (see below), whose sum is σ = 55188111341376. Its totient is φ = 5659361439264.

The previous prime is 21224401033399. The next prime is 21224401033477. The reversal of 21224401033410 is 1433010442212.

21224401033410 is a `hidden beast` number, since 2 + 1 + 2 + 244 + 0 + 1 + 0 + 3 + 3 + 410 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8905414 + ... + 11034273.

It is an arithmetic number, because the mean of its divisors is an integer number (1149752319612).

Almost surely, 2^{21224401033410} is an apocalyptic number.

21224401033410 is an abundant number, since it is smaller than the sum of its proper divisors (33963710307966).

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

21224401033410 is a wasteful number, since it uses less digits than its factorization.

21224401033410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19951527 (or 19951524 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 21224401033410 its reverse (1433010442212), we get a palindrome (22657411475622).

The spelling of 21224401033410 in words is "twenty-one trillion, two hundred twenty-four billion, four hundred one million, thirty-three thousand, four hundred ten".