1000121022050 has 12 divisors (see below), whose sum is σ = 1860225101106. Its totient is φ = 400048408800.

The previous prime is 1000121022049. The next prime is 1000121022053. The reversal of 1000121022050 is 502201210001.

It can be written as a sum of positive squares in 3 ways, for example, as 497954624281 + 502166397769 = 705659^2 + 708637^2 .

It is not an unprimeable number, because it can be changed into a prime (1000121022053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10001210171 + ... + 10001210270.

Almost surely, 2^{1000121022050} is an apocalyptic number.

1000121022050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000121022050 is a deficient number, since it is larger than the sum of its proper divisors (860104079056).

1000121022050 is a wasteful number, since it uses less digits than its factorization.

1000121022050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20002420453 (or 20002420448 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 1000121022050 its reverse (502201210001), we get a palindrome (1502322232051).

The spelling of 1000121022050 in words is "one trillion, one hundred twenty-one million, twenty-two thousand, fifty".