21114121036 has 12 divisors (see below), whose sum is σ = 36951891760. Its totient is φ = 10556437680.

The previous prime is 21114121033. The next prime is 21114121037. The reversal of 21114121036 is 63012141112.

It is a super-2 number, since 2×21114121036² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21114120998 and 21114121016.

It is not an unprimeable number, because it can be changed into a prime (21114121033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74760 + ... + 218671.

Almost surely, 2^21114121036 is an apocalyptic number.

It is an amenable number.

21114121036 is a deficient number, since it is larger than the sum of its proper divisors (15837770724).

21114121036 is a wasteful number, since it uses less digits than its factorization.

21114121036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311424 (or 311422 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 21114121036 its reverse (63012141112), we get a palindrome (84126262148).

The spelling of 21114121036 in words is "twenty-one billion, one hundred fourteen million, one hundred twenty-one thousand, thirty-six".