22020021000012 has 48 divisors (see below), whose sum is σ = 58736026379520. Its totient is φ = 6289723459392.

The previous prime is 22020020999983. The next prime is 22020021000121. The reversal of 22020021000012 is 21000012002022.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 15 ways as a sum of consecutive naturals, for example, 35337462 + ... + 35955197.

It is an arithmetic number, because the mean of its divisors is an integer number (1223667216240).

Almost surely, 2^{22020021000012} is an apocalyptic number.

It is an amenable number.

22020021000012 is an abundant number, since it is smaller than the sum of its proper divisors (36716005379508).

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

22020021000012 is a wasteful number, since it uses less digits than its factorization.

22020021000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71296350 (or 71296348 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22020021000012 its reverse (21000012002022), we get a palindrome (43020033002034).

The spelling of 22020021000012 in words is "twenty-two trillion, twenty billion, twenty-one million, twelve", and thus it is an aban number and an uban number.