220021110202211 has 12 divisors (see below), whose sum is σ = 228044814239424. Its totient is φ = 212270889012000.

The previous prime is 220021110202169. The next prime is 220021110202217. The reversal of 220021110202211 is 112202011120022.

It is not a de Polignac number, because 220021110202211 - 2²² = 220021106007907 is a prime.

It is a super-2 number, since 2×220021110202211² (a number of 29 digits) contains 22 as substring.

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 220021110202211.

It is not an unprimeable number, because it can be changed into a prime (220021110202217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99450995 + ... + 101639276.

It is an arithmetic number, because the mean of its divisors is an integer number (19003734519952).

Almost surely, 2^{220021110202211} is an apocalyptic number.

220021110202211 is a deficient number, since it is larger than the sum of its proper divisors (8023704037213).

220021110202211 is a wasteful number, since it uses less digits than its factorization.

220021110202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201091630 (or 201091601 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220021110202211 its reverse (112202011120022), we get a palindrome (332223121322233).

The spelling of 220021110202211 in words is "two hundred twenty trillion, twenty-one billion, one hundred ten million, two hundred two thousand, two hundred eleven".