20120022132020 has 24 divisors (see below), whose sum is σ = 42416451338184. Its totient is φ = 8016693641216.

The previous prime is 20120022131977. The next prime is 20120022132053. The reversal of 20120022132020 is 2023122002102.

It can be written as a sum of positive squares in 4 ways, for example, as 9965424121636 + 10154598010384 = 3156806^2 + 3186628^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20120022132020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1957195457 + ... + 1957205736.

It is an arithmetic number, because the mean of its divisors is an integer number (1767352139091).

Almost surely, 2^{20120022132020} is an apocalyptic number.

20120022132020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120022132020 is an abundant number, since it is smaller than the sum of its proper divisors (22296429206164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20120022132020 is a wasteful number, since it uses less digits than its factorization.

20120022132020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914401459 (or 3914401457 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20120022132020 its reverse (2023122002102), we get a palindrome (22143144134122).

The spelling of 20120022132020 in words is "twenty trillion, one hundred twenty billion, twenty-two million, one hundred thirty-two thousand, twenty".