2221201021011 has 32 divisors (see below), whose sum is σ = 3391940966400. Its totient is φ = 1266538690560.

The previous prime is 2221201021003. The next prime is 2221201021021. The reversal of 2221201021011 is 1101201021222.

It is not a de Polignac number, because 2221201021011 - 2³ = 2221201021003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221201021001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55111555 + ... + 55151843.

It is an arithmetic number, because the mean of its divisors is an integer number (105998155200).

Almost surely, 2^{2221201021011} is an apocalyptic number.

2221201021011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2221201021011 is a deficient number, since it is larger than the sum of its proper divisors (1170739945389).

2221201021011 is a wasteful number, since it uses less digits than its factorization.

2221201021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45859.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2221201021011 its reverse (1101201021222), we get a palindrome (3322402042233).

The spelling of 2221201021011 in words is "two trillion, two hundred twenty-one billion, two hundred one million, twenty-one thousand, eleven".