20022131212 has 24 divisors (see below), whose sum is σ = 36605159136. Its totient is φ = 9564538368.

The previous prime is 20022131179. The next prime is 20022131257. The reversal of 20022131212 is 21213122002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49093 + ... + 206044.

It is an arithmetic number, because the mean of its divisors is an integer number (1525214964).

Almost surely, 2^20022131212 is an apocalyptic number.

It is an amenable number.

20022131212 is a deficient number, since it is larger than the sum of its proper divisors (16583027924).

20022131212 is a wasteful number, since it uses less digits than its factorization.

20022131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256017 (or 256015 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20022131212 its reverse (21213122002), we get a palindrome (41235253214).

The spelling of 20022131212 in words is "twenty billion, twenty-two million, one hundred thirty-one thousand, two hundred twelve".