200120022021100 has 36 divisors (see below), whose sum is σ = 434264163783408. Its totient is φ = 80047323832000.

The previous prime is 200120022021091. The next prime is 200120022021149. The reversal of 200120022021100 is 1120220021002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3263730 + ... + 20270470.

It is an arithmetic number, because the mean of its divisors is an integer number (12062893438428).

Almost surely, 2^{200120022021100} is an apocalyptic number.

200120022021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200120022021100 is an abundant number, since it is smaller than the sum of its proper divisors (234144141762308).

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

200120022021100 is a wasteful number, since it uses less digits than its factorization.

200120022021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17124426 (or 17124419 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200120022021100 its reverse (1120220021002), we get a palindrome (201240242042102).

The spelling of 200120022021100 in words is "two hundred trillion, one hundred twenty billion, twenty-two million, twenty-one thousand, one hundred".