220021212211011 has 32 divisors (see below), whose sum is σ = 326386008345600. Its totient is φ = 146487974558400.

The previous prime is 220021212211007. The next prime is 220021212211061. The reversal of 220021212211011 is 110112212120022.

220021212211011 is a `hidden beast` number, since 220 + 0 + 2 + 121 + 221 + 101 + 1 = 666.

It is not a de Polignac number, because 220021212211011 - 2² = 220021212211007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220021212211061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127292655 + ... + 129009543.

It is an arithmetic number, because the mean of its divisors is an integer number (10199562760800).

Almost surely, 2^{220021212211011} is an apocalyptic number.

220021212211011 is a deficient number, since it is larger than the sum of its proper divisors (106364796134589).

220021212211011 is a wasteful number, since it uses less digits than its factorization.

220021212211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723136 (or 1723130 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 220021212211011 its reverse (110112212120022), we get a palindrome (330133424331033).

The spelling of 220021212211011 in words is "two hundred twenty trillion, twenty-one billion, two hundred twelve million, two hundred eleven thousand, eleven".