20022101002001 has 32 divisors (see below), whose sum is σ = 24975227289600. Its totient is φ = 15663521759040.

The previous prime is 20022101001893. The next prime is 20022101002019. The reversal of 20022101002001 is 10020010122002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20022101002001 - 2¹⁴ = 20022100985617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20022101002081) 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, 9968906 + ... + 11807763.

It is an arithmetic number, because the mean of its divisors is an integer number (780475852800).

Almost surely, 2^{20022101002001} is an apocalyptic number.

It is an amenable number.

20022101002001 is a deficient number, since it is larger than the sum of its proper divisors (4953126287599).

20022101002001 is a wasteful number, since it uses less digits than its factorization.

20022101002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21776949.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20022101002001 its reverse (10020010122002), we get a palindrome (30042111124003).

The spelling of 20022101002001 in words is "twenty trillion, twenty-two billion, one hundred one million, two thousand, one".