221012021119 has 4 divisors (see below), whose sum is σ = 222475677040. Its totient is φ = 219548365200.

The previous prime is 221012021117. The next prime is 221012021123. The reversal of 221012021119 is 911120210122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 911120210122 = 2 ⋅455560105061.

It is a cyclic number.

It is not a de Polignac number, because 221012021119 - 2¹ = 221012021117 is a prime.

It is a super-2 number, since 2×221012021119² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221012021119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221012021117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 731827734 + ... + 731828035.

It is an arithmetic number, because the mean of its divisors is an integer number (55618919260).

Almost surely, 2^221012021119 is an apocalyptic number.

221012021119 is a deficient number, since it is larger than the sum of its proper divisors (1463655921).

221012021119 is a wasteful number, since it uses less digits than its factorization.

221012021119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463655920.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 221012021119 in words is "two hundred twenty-one billion, twelve million, twenty-one thousand, one hundred nineteen".