20022212012 has 24 divisors (see below), whose sum is σ = 38328407040. Its totient is φ = 9076199760.

The previous prime is 20022211997. The next prime is 20022212099. The reversal of 20022212012 is 21021222002.

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, 603812 + ... + 636107.

It is an arithmetic number, because the mean of its divisors is an integer number (1597016960).

Almost surely, 2^20022212012 is an apocalyptic number.

20022212012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20022212012 is a deficient number, since it is larger than the sum of its proper divisors (18306195028).

20022212012 is a wasteful number, since it uses less digits than its factorization.

20022212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240301 (or 1240299 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20022212012 its reverse (21021222002), we get a palindrome (41043434014).

The spelling of 20022212012 in words is "twenty billion, twenty-two million, two hundred twelve thousand, twelve".