20022221000012 has 24 divisors (see below), whose sum is σ = 43684845818880. Its totient is φ = 7800865324560.

The previous prime is 20022221000003. The next prime is 20022221000029. The reversal of 20022221000012 is 21000012222002.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32503605212 + ... + 32503605827.

It is an arithmetic number, because the mean of its divisors is an integer number (1820201909120).

Almost surely, 2^{20022221000012} is an apocalyptic number.

20022221000012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20022221000012 is an abundant number, since it is smaller than the sum of its proper divisors (23662624818868).

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

20022221000012 is a wasteful number, since it uses less digits than its factorization.

20022221000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65007211061 (or 65007211059 counting only the distinct ones).

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

Adding to 20022221000012 its reverse (21000012222002), we get a palindrome (41022233222014).

The spelling of 20022221000012 in words is "twenty trillion, twenty-two billion, two hundred twenty-one million, twelve", and thus it is an aban number.