220021202122111 has 32 divisors (see below), whose sum is σ = 237623355970560. Its totient is φ = 202516722180864.

The previous prime is 220021202122109. The next prime is 220021202122157. The reversal of 220021202122111 is 111221202120022.

It is not a de Polignac number, because 220021202122111 - 2¹ = 220021202122109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220021202128111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48008115126 + ... + 48008119708.

It is an arithmetic number, because the mean of its divisors is an integer number (7425729874080).

Almost surely, 2^{220021202122111} is an apocalyptic number.

220021202122111 is a deficient number, since it is larger than the sum of its proper divisors (17602153848449).

220021202122111 is a wasteful number, since it uses less digits than its factorization.

220021202122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10615.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220021202122111 its reverse (111221202120022), we get a palindrome (331242404242133).

The spelling of 220021202122111 in words is "two hundred twenty trillion, twenty-one billion, two hundred two million, one hundred twenty-two thousand, one hundred eleven".