20012021000222 has 4 divisors (see below), whose sum is σ = 30018031500336. Its totient is φ = 10006010500110.

The previous prime is 20012021000221. The next prime is 20012021000239. The reversal of 20012021000222 is 22200012021002.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 20012021000197 and 20012021000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012021000221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5003005250054 + ... + 5003005250057.

It is an arithmetic number, because the mean of its divisors is an integer number (7504507875084).

Almost surely, 2^{20012021000222} is an apocalyptic number.

20012021000222 is a deficient number, since it is larger than the sum of its proper divisors (10006010500114).

20012021000222 is a wasteful number, since it uses less digits than its factorization.

20012021000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10006010500113.

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

Adding to 20012021000222 its reverse (22200012021002), we get a palindrome (42212033021224).

The spelling of 20012021000222 in words is "twenty trillion, twelve billion, twenty-one million, two hundred twenty-two", and thus it is an aban number.