20333011212 has 18 divisors (see below), whose sum is σ = 51397333988. Its totient is φ = 6777670392.

The previous prime is 20333011201. The next prime is 20333011229. The reversal of 20333011212 is 21211033302.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282402898 + ... + 282402969.

Almost surely, 2^20333011212 is an apocalyptic number.

It is an amenable number.

20333011212 is an abundant number, since it is smaller than the sum of its proper divisors (31064322776).

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

20333011212 is a wasteful number, since it uses less digits than its factorization.

20333011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564805877 (or 564805872 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20333011212 its reverse (21211033302), we get a palindrome (41544044514).

The spelling of 20333011212 in words is "twenty billion, three hundred thirty-three million, eleven thousand, two hundred twelve".