220121103011201 has 16 divisors (see below), whose sum is σ = 252937372634496. Its totient is φ = 187648140468096.

The previous prime is 220121103011141. The next prime is 220121103011213. The reversal of 220121103011201 is 102110301121022.

It is a happy number.

It is not a de Polignac number, because 220121103011201 - 2¹⁸ = 220121102749057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220121103011201.

It is not an unprimeable number, because it can be changed into a prime (220121103011101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25750556 + ... + 33216461.

It is an arithmetic number, because the mean of its divisors is an integer number (15808585789656).

Almost surely, 2^{220121103011201} is an apocalyptic number.

It is an amenable number.

220121103011201 is a deficient number, since it is larger than the sum of its proper divisors (32816269623295).

220121103011201 is a wasteful number, since it uses less digits than its factorization.

220121103011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58969928.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 220121103011201 its reverse (102110301121022), we get a palindrome (322231404132223).

The spelling of 220121103011201 in words is "two hundred twenty trillion, one hundred twenty-one billion, one hundred three million, eleven thousand, two hundred one".