220121012001 has 8 divisors (see below), whose sum is σ = 320176017504. Its totient is φ = 133406673920.

The previous prime is 220121011993. The next prime is 220121012057. The reversal of 220121012001 is 100210121022.

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 220121012001 - 2³ = 220121011993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220121012081) 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, 3335166816 + ... + 3335166881.

It is an arithmetic number, because the mean of its divisors is an integer number (40022002188).

Almost surely, 2^220121012001 is an apocalyptic number.

It is an amenable number.

220121012001 is a deficient number, since it is larger than the sum of its proper divisors (100055005503).

220121012001 is a wasteful number, since it uses less digits than its factorization.

220121012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6670333711.

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

Adding to 220121012001 its reverse (100210121022), we get a palindrome (320331133023).

The spelling of 220121012001 in words is "two hundred twenty billion, one hundred twenty-one million, twelve thousand, one".