200211001020 has 96 divisors (see below), whose sum is σ = 623550715200. Its totient is φ = 53331996672.

The previous prime is 200211000989. The next prime is 200211001031. The reversal of 200211001020 is 20100112002.

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 = 200211000993 and 200211001011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302112 + ... + 701208.

It is an arithmetic number, because the mean of its divisors is an integer number (6495319950).

Almost surely, 2^200211001020 is an apocalyptic number.

200211001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200211001020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311775357600).

200211001020 is an abundant number, since it is smaller than the sum of its proper divisors (423339714180).

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

200211001020 is a wasteful number, since it uses less digits than its factorization.

200211001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400044 (or 400036 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 200211001020 its reverse (20100112002), we get a palindrome (220311113022).

The spelling of 200211001020 in words is "two hundred billion, two hundred eleven million, one thousand, twenty".