2000121024850 has 36 divisors (see below), whose sum is σ = 4028409451566. Its totient is φ = 738506221440.

The previous prime is 2000121024841. The next prime is 2000121024851. The reversal of 2000121024850 is 584201210002.

It can be written as a sum of positive squares in 9 ways, for example, as 236008441249 + 1764112583601 = 485807^2 + 1328199^2 .

It is a super-2 number, since 2×2000121024850² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2000121024851) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 118341907 + ... + 118358806.

Almost surely, 2^{2000121024850} is an apocalyptic number.

2000121024850 is an abundant number, since it is smaller than the sum of its proper divisors (2028288426716).

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

2000121024850 is a wasteful number, since it uses less digits than its factorization.

2000121024850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236700751 (or 236700733 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 2000121024850 its reverse (584201210002), we get a palindrome (2584322234852).

The spelling of 2000121024850 in words is "two trillion, one hundred twenty-one million, twenty-four thousand, eight hundred fifty".