21211400035 has 24 divisors (see below), whose sum is σ = 30168068976. Its totient is φ = 14270518080.

The previous prime is 21211400003. The next prime is 21211400047. The reversal of 21211400035 is 53000411212.

It is not a de Polignac number, because 21211400035 - 2⁵ = 21211400003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21211399985 and 21211400021.

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, 803781 + ... + 829750.

It is an arithmetic number, because the mean of its divisors is an integer number (1257002874).

Almost surely, 2^21211400035 is an apocalyptic number.

21211400035 is a deficient number, since it is larger than the sum of its proper divisors (8956668941).

21211400035 is a wasteful number, since it uses less digits than its factorization.

21211400035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633603 (or 1633596 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 21211400035 its reverse (53000411212), we get a palindrome (74211811247).

The spelling of 21211400035 in words is "twenty-one billion, two hundred eleven million, four hundred thousand, thirty-five".