901982119221 has 6 divisors (see below), whose sum is σ = 1302863061110. Its totient is φ = 601321412808.

The previous prime is 901982119177. The next prime is 901982119253. The reversal of 901982119221 is 122911289109.

It can be written as a sum of positive squares in only one way, i.e., 898920156996 + 3061962225 = 948114^2 + 55335^2 .

It is not a de Polignac number, because 901982119221 - 2¹¹ = 901982117173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901982111221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50110117726 + ... + 50110117743.

Almost surely, 2^901982119221 is an apocalyptic number.

It is an amenable number.

901982119221 is a deficient number, since it is larger than the sum of its proper divisors (400880941889).

901982119221 is a wasteful number, since it uses less digits than its factorization.

901982119221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100220235475 (or 100220235472 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 45.

The spelling of 901982119221 in words is "nine hundred one billion, nine hundred eighty-two million, one hundred nineteen thousand, two hundred twenty-one".