20000121001120 has 48 divisors (see below), whose sum is σ = 50884923244680. Its totient is φ = 7384660061184.

The previous prime is 20000121001103. The next prime is 20000121001139. The reversal of 20000121001120 is 2110012100002.

It can be written as a sum of positive squares in 4 ways, for example, as 16702947781776 + 3297173219344 = 4086924^2 + 1815812^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20000121001097 and 20000121001106.

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, 4807719315 + ... + 4807723474.

Almost surely, 2^{20000121001120} is an apocalyptic number.

20000121001120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000121001120 is an abundant number, since it is smaller than the sum of its proper divisors (30884802243560).

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

20000121001120 is a wasteful number, since it uses less digits than its factorization.

20000121001120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9615442817 (or 9615442809 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20000121001120 its reverse (2110012100002), we get a palindrome (22110133101122).

The spelling of 20000121001120 in words is "twenty trillion, one hundred twenty-one million, one thousand, one hundred twenty".