20022000121001 has 4 divisors (see below), whose sum is σ = 20022118351104. Its totient is φ = 20021881890900.

The previous prime is 20022000120989. The next prime is 20022000121003. The reversal of 20022000121001 is 10012100022002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20022000121001 - 2¹⁰ = 20022000119977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20022000121003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58860665 + ... + 59199846.

It is an arithmetic number, because the mean of its divisors is an integer number (5005529587776).

Almost surely, 2^{20022000121001} is an apocalyptic number.

It is an amenable number.

20022000121001 is a deficient number, since it is larger than the sum of its proper divisors (118230103).

20022000121001 is a wasteful number, since it uses less digits than its factorization.

20022000121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118230102.

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

Adding to 20022000121001 its reverse (10012100022002), we get a palindrome (30034100143003).

The spelling of 20022000121001 in words is "twenty trillion, twenty-two billion, one hundred twenty-one thousand, one".