20022221000001 has 32 divisors (see below), whose sum is σ = 30115602137088. Its totient is φ = 11728025749440.

The previous prime is 20022220999987. The next prime is 20022221000003. The reversal of 20022221000001 is 10000012222002.

It is not a de Polignac number, because 20022221000001 - 2¹⁰ = 20022220998977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20022221000003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85314241 + ... + 85548606.

It is an arithmetic number, because the mean of its divisors is an integer number (941112566784).

Almost surely, 2^{20022221000001} is an apocalyptic number.

It is an amenable number.

20022221000001 is a deficient number, since it is larger than the sum of its proper divisors (10093381137087).

20022221000001 is a wasteful number, since it uses less digits than its factorization.

20022221000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170862981.

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

Adding to 20022221000001 its reverse (10000012222002), we get a palindrome (30022233222003).

The spelling of 20022221000001 in words is "twenty trillion, twenty-two billion, two hundred twenty-one million, one", and thus it is an aban number.