200120202220100 has 36 divisors (see below), whose sum is σ = 434348163612804. Its totient is φ = 80031984151680.

The previous prime is 200120202220019. The next prime is 200120202220117. The reversal of 200120202220100 is 1022202021002.

It can be written as a sum of positive squares in 6 ways, for example, as 11551719083524 + 188568483136576 = 3398782^2 + 13732024^2 .

It is a super-2 number, since 2×200120202220100² (a number of 29 digits) contains 22 as substring.

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, 200709419 + ... + 201704018.

Almost surely, 2^{200120202220100} is an apocalyptic number.

200120202220100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200120202220100 is an abundant number, since it is smaller than the sum of its proper divisors (234227961392704).

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

200120202220100 is a wasteful number, since it uses less digits than its factorization.

200120202220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402418424 (or 402418417 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 200120202220100 its reverse (1022202021002), we get a palindrome (201142404241102).

The spelling of 200120202220100 in words is "two hundred trillion, one hundred twenty billion, two hundred two million, two hundred twenty thousand, one hundred".