20402214212 has 48 divisors (see below), whose sum is σ = 39185664000. Its totient is φ = 9257359104.

The previous prime is 20402214197. The next prime is 20402214229. The reversal of 20402214212 is 21241220402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243464 + ... + 316352.

It is an arithmetic number, because the mean of its divisors is an integer number (816368000).

Almost surely, 2^20402214212 is an apocalyptic number.

It is an amenable number.

20402214212 is a deficient number, since it is larger than the sum of its proper divisors (18783449788).

20402214212 is a wasteful number, since it uses less digits than its factorization.

20402214212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73068 (or 73066 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20402214212 its reverse (21241220402), we get a palindrome (41643434614).

The spelling of 20402214212 in words is "twenty billion, four hundred two million, two hundred fourteen thousand, two hundred twelve".