200020021101 has 12 divisors (see below), whose sum is σ = 290856855900. Its totient is φ = 132451735680.

The previous prime is 200020021099. The next prime is 200020021121. The reversal of 200020021101 is 101120020002.

It can be written as a sum of positive squares in 2 ways, for example, as 36844418601 + 163175602500 = 191949^2 + 403950^2 .

It is not a de Polignac number, because 200020021101 - 2¹ = 200020021099 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200020021121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74577340 + ... + 74580021.

It is an arithmetic number, because the mean of its divisors is an integer number (24238071325).

Almost surely, 2^200020021101 is an apocalyptic number.

It is an amenable number.

200020021101 is a deficient number, since it is larger than the sum of its proper divisors (90836834799).

200020021101 is a wasteful number, since it uses less digits than its factorization.

200020021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149157516 (or 149157513 counting only the distinct ones).

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

Adding to 200020021101 its reverse (101120020002), we get a palindrome (301140041103).

The spelling of 200020021101 in words is "two hundred billion, twenty million, twenty-one thousand, one hundred one".