220011210001021 has 32 divisors (see below), whose sum is σ = 235098402739200. Its totient is φ = 205168533154560.

The previous prime is 220011210000997. The next prime is 220011210001043. The reversal of 220011210001021 is 120100012110022.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220011210001021 is a prime.

It is a super-2 number, since 2×220011210001021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220011210000992 and 220011210001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220011210001421) 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, 6097346646 + ... + 6097382728.

It is an arithmetic number, because the mean of its divisors is an integer number (7346825085600).

Almost surely, 2^{220011210001021} is an apocalyptic number.

It is an amenable number.

220011210001021 is a deficient number, since it is larger than the sum of its proper divisors (15087192738179).

220011210001021 is a wasteful number, since it uses less digits than its factorization.

220011210001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41329.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 220011210001021 its reverse (120100012110022), we get a palindrome (340111222111043).

The spelling of 220011210001021 in words is "two hundred twenty trillion, eleven billion, two hundred ten million, one thousand, twenty-one".