200111000101020 has 192 divisors, whose sum is σ = 660754959580800. Its totient is φ = 50104639549440.

The previous prime is 200111000101009. The next prime is 200111000101027. The reversal of 200111000101020 is 20101000111002.

It is a happy number.

It is a super-2 number, since 2×200111000101020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 200111000100993 and 200111000101011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200111000101027) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22024275 + ... + 29753834.

It is an arithmetic number, because the mean of its divisors is an integer number (3441432081150).

Almost surely, 2^{200111000101020} is an apocalyptic number.

200111000101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200111000101020 is an abundant number, since it is smaller than the sum of its proper divisors (460643959479780).

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

200111000101020 is a wasteful number, since it uses less digits than its factorization.

200111000101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51778565 (or 51778557 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 200111000101020 its reverse (20101000111002), we get a palindrome (220212000212022).

The spelling of 200111000101020 in words is "two hundred trillion, one hundred eleven billion, one hundred one thousand, twenty".