21411011001 has 16 divisors (see below), whose sum is σ = 29328792768. Its totient is φ = 13883860800.

The previous prime is 21411010991. The next prime is 21411011003. The reversal of 21411011001 is 10011011412.

It is not a de Polignac number, because 21411011001 - 2¹⁸ = 21410748857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21411011003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345571 + ... + 402791.

It is an arithmetic number, because the mean of its divisors is an integer number (1833049548).

Almost surely, 2^21411011001 is an apocalyptic number.

It is an amenable number.

21411011001 is a deficient number, since it is larger than the sum of its proper divisors (7917781767).

21411011001 is a wasteful number, since it uses less digits than its factorization.

21411011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60632.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 21411011001 its reverse (10011011412), we get a palindrome (31422022413).

The spelling of 21411011001 in words is "twenty-one billion, four hundred eleven million, eleven thousand, one".