2011221099969 has 16 divisors (see below), whose sum is σ = 2774380929024. Its totient is φ = 1294632939600.

The previous prime is 2011221099949. The next prime is 2011221099997. The reversal of 2011221099969 is 9699901221102.

It is not a de Polignac number, because 2011221099969 - 2⁷ = 2011221099841 is a prime.

It is a super-2 number, since 2×2011221099969² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2011221099949) 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, 24367417 + ... + 24449814.

It is an arithmetic number, because the mean of its divisors is an integer number (173398808064).

Almost surely, 2^{2011221099969} is an apocalyptic number.

It is an amenable number.

2011221099969 is a deficient number, since it is larger than the sum of its proper divisors (763159829055).

2011221099969 is a wasteful number, since it uses less digits than its factorization.

2011221099969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48817708.

The product of its (nonzero) digits is 314928, while the sum is 51.

The spelling of 2011221099969 in words is "two trillion, eleven billion, two hundred twenty-one million, ninety-nine thousand, nine hundred sixty-nine".