22222219971125 has 36 divisors (see below), whose sum is σ = 28339115054796. Its totient is φ = 17397585894000.

The previous prime is 22222219971121. The next prime is 22222219971163. The reversal of 22222219971125 is 52117991222222.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 711111039076 + 21511108932049 = 843274^2 + 4638007^2 .

It is not a de Polignac number, because 22222219971125 - 2² = 22222219971121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22222219971125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222219971121) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2477112890 + ... + 2477121860.

It is an arithmetic number, because the mean of its divisors is an integer number (787197640411).

Almost surely, 2^{22222219971125} is an apocalyptic number.

22222219971125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22222219971125 is a deficient number, since it is larger than the sum of its proper divisors (6116895083671).

22222219971125 is an frugal number, since it uses more digits than its factorization.

22222219971125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18051 (or 9023 counting only the distinct ones).

The product of its digits is 362880, while the sum is 47.

The spelling of 22222219971125 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred nineteen million, nine hundred seventy-one thousand, one hundred twenty-five".