20235522222152 has 16 divisors (see below), whose sum is σ = 37941848736300. Its totient is φ = 10117695892480.

The previous prime is 20235522222143. The next prime is 20235522222233. The reversal of 20235522222152 is 25122222553202.

It can be written as a sum of positive squares in 2 ways, for example, as 20122455469636 + 113066752516 = 4485806^2 + 336254^2 .

It is a super-2 number, since 2×20235522222152² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6820877 + ... + 9327132.

Almost surely, 2^{20235522222152} is an apocalyptic number.

It is an amenable number.

20235522222152 is a deficient number, since it is larger than the sum of its proper divisors (17706326514148).

20235522222152 is a wasteful number, since it uses less digits than its factorization.

20235522222152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16304656 (or 16304652 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 20235522222152 its reverse (25122222553202), we get a palindrome (45357744775354).

The spelling of 20235522222152 in words is "twenty trillion, two hundred thirty-five billion, five hundred twenty-two million, two hundred twenty-two thousand, one hundred fifty-two".