22271511890 has 16 divisors (see below), whose sum is σ = 40233451032. Its totient is φ = 8876442624.

The previous prime is 22271511881. The next prime is 22271511893. The reversal of 22271511890 is 9811517222.

It can be written as a sum of positive squares in 4 ways, for example, as 8200570249 + 14070941641 = 90557^2 + 118621^2 .

It is a super-2 number, since 2×22271511890² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22271511893) 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 7 ways as a sum of consecutive naturals, for example, 4017359 + ... + 4022898.

Almost surely, 2^22271511890 is an apocalyptic number.

22271511890 is a deficient number, since it is larger than the sum of its proper divisors (17961939142).

22271511890 is a wasteful number, since it uses less digits than its factorization.

22271511890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8040541.

The product of its (nonzero) digits is 20160, while the sum is 38.

The spelling of 22271511890 in words is "twenty-two billion, two hundred seventy-one million, five hundred eleven thousand, eight hundred ninety".