220102012011 has 16 divisors (see below), whose sum is σ = 335438014464. Its totient is φ = 125755901184.

The previous prime is 220102012007. The next prime is 220102012063. The reversal of 220102012011 is 110210201022.

It is not a de Polignac number, because 220102012011 - 2² = 220102012007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220102012001) 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, 531846 + ... + 850331.

It is an arithmetic number, because the mean of its divisors is an integer number (20964875904).

Almost surely, 2^220102012011 is an apocalyptic number.

220102012011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

220102012011 is a deficient number, since it is larger than the sum of its proper divisors (115336002453).

220102012011 is a wasteful number, since it uses less digits than its factorization.

220102012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389770.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 220102012011 its reverse (110210201022), we get a palindrome (330312213033).

The spelling of 220102012011 in words is "two hundred twenty billion, one hundred two million, twelve thousand, eleven".