200111021010 has 192 divisors, whose sum is σ = 566223001344. Its totient is φ = 48834662400.

The previous prime is 200111020997. The next prime is 200111021017. The reversal of 200111021010 is 10120111002.

It is a happy number.

It is a super-2 number, since 2×200111021010² (a number of 23 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 = 200111020983 and 200111021001.

It is not an unprimeable number, because it can be changed into a prime (200111021017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19252915 + ... + 19263305.

It is an arithmetic number, because the mean of its divisors is an integer number (2949078132).

Almost surely, 2^200111021010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200111021010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283111500672).

200111021010 is an abundant number, since it is smaller than the sum of its proper divisors (366111980334).

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

200111021010 is a wasteful number, since it uses less digits than its factorization.

200111021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10769 (or 10766 counting only the distinct ones).

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

Adding to 200111021010 its reverse (10120111002), we get a palindrome (210231132012).

The spelling of 200111021010 in words is "two hundred billion, one hundred eleven million, twenty-one thousand, ten".