220121121210001 has 8 divisors (see below), whose sum is σ = 243514274937408. Its totient is φ = 197291657934000.

The previous prime is 220121121209981. The next prime is 220121121210017. The reversal of 220121121210001 is 100012121121022.

220121121210001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220121121210001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220121121210041) 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, 140922612030 + ... + 140922613591.

It is an arithmetic number, because the mean of its divisors is an integer number (30439284367176).

Almost surely, 2^{220121121210001} is an apocalyptic number.

It is an amenable number.

220121121210001 is a deficient number, since it is larger than the sum of its proper divisors (23393153727407).

220121121210001 is a wasteful number, since it uses less digits than its factorization.

220121121210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281845225703.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 220121121210001 its reverse (100012121121022), we get a palindrome (320133242331023).

The spelling of 220121121210001 in words is "two hundred twenty trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred ten thousand, one".