20021211096 has 16 divisors (see below), whose sum is σ = 50053027800. Its totient is φ = 6673737024.

The previous prime is 20021211079. The next prime is 20021211109. The reversal of 20021211096 is 69011212002.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 834217129 = 20021211096 / (2 + 0 + 0 + 2 + 1 + 2 + 1 + 1 + 0 + 9 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417108541 + ... + 417108588.

Almost surely, 2^20021211096 is an apocalyptic number.

It is an amenable number.

20021211096 is an abundant number, since it is smaller than the sum of its proper divisors (30031816704).

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

20021211096 is a wasteful number, since it uses less digits than its factorization.

20021211096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834217138 (or 834217134 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 20021211096 its reverse (69011212002), we get a palindrome (89032423098).

The spelling of 20021211096 in words is "twenty billion, twenty-one million, two hundred eleven thousand, ninety-six".