20220121110001 has 8 divisors (see below), whose sum is σ = 20269586719080. Its totient is φ = 20170709183232.

The previous prime is 20220121109989. The next prime is 20220121110041. The reversal of 20220121110001 is 10001112102202.

It can be written as a sum of positive squares in 4 ways, for example, as 68560185600 + 20151560924401 = 261840^2 + 4489049^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20220121110001 - 2⁴³ = 11424028087793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20220121110041) 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, 12666280 + ... + 14173033.

It is an arithmetic number, because the mean of its divisors is an integer number (2533698339885).

Almost surely, 2^{20220121110001} is an apocalyptic number.

It is an amenable number.

20220121110001 is a deficient number, since it is larger than the sum of its proper divisors (49465609079).

20220121110001 is a wasteful number, since it uses less digits than its factorization.

20220121110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26841155.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20220121110001 its reverse (10001112102202), we get a palindrome (30221233212203).

The spelling of 20220121110001 in words is "twenty trillion, two hundred twenty billion, one hundred twenty-one million, one hundred ten thousand, one".