220100200121201 has 16 divisors (see below), whose sum is σ = 224633536050000. Its totient is φ = 215608168839168.

The previous prime is 220100200121167. The next prime is 220100200121237. The reversal of 220100200121201 is 102121002001022.

It can be written as a sum of positive squares in 8 ways, for example, as 6238385400976 + 213861814720225 = 2497676^2 + 14624015^2 .

It is a cyclic number.

It is not a de Polignac number, because 220100200121201 - 2²⁶ = 220100133012337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220100200121261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116940425 + ... + 118807673.

It is an arithmetic number, because the mean of its divisors is an integer number (14039596003125).

Almost surely, 2^{220100200121201} is an apocalyptic number.

It is an amenable number.

220100200121201 is a deficient number, since it is larger than the sum of its proper divisors (4533335928799).

220100200121201 is a wasteful number, since it uses less digits than its factorization.

220100200121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878308.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220100200121201 its reverse (102121002001022), we get a palindrome (322221202122223).

The spelling of 220100200121201 in words is "two hundred twenty trillion, one hundred billion, two hundred million, one hundred twenty-one thousand, two hundred one".