20220121001001 has 8 divisors (see below), whose sum is σ = 26976731815264. Its totient is φ = 13471795427040.

The previous prime is 20220121000993. The next prime is 20220121001023. The reversal of 20220121001001 is 10010012102202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20220121001001 - 2³ = 20220121000993 is a prime.

It is a super-3 number, since 3×20220121001001³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20220121001051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2071304380 + ... + 2071314141.

It is an arithmetic number, because the mean of its divisors is an integer number (3372091476908).

Almost surely, 2^{20220121001001} is an apocalyptic number.

It is an amenable number.

20220121001001 is a deficient number, since it is larger than the sum of its proper divisors (6756610814263).

20220121001001 is a wasteful number, since it uses less digits than its factorization.

20220121001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4142620151.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20220121001001 its reverse (10010012102202), we get a palindrome (30230133103203).

The spelling of 20220121001001 in words is "twenty trillion, two hundred twenty billion, one hundred twenty-one million, one thousand, one".