201010100 has 36 divisors (see below), whose sum is σ = 436995468. Its totient is φ = 80256000.

The previous prime is 201010097. The next prime is 201010123. The reversal of 201010100 is 1010102.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 21771556 + 179238544 = 4666^2 + 13388^2 .

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a congruent number.

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, 64580 + ... + 67620.

It is an arithmetic number, because the mean of its divisors is an integer number (12138763).

Almost surely, 2^201010100 is an apocalyptic number.

201010100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201010100 is an abundant number, since it is smaller than the sum of its proper divisors (235985368).

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

201010100 is a wasteful number, since it uses less digits than its factorization.

201010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3716 (or 3709 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 201010100 is about 14177.8030738193. The cubic root of 201010100 is about 585.7864116159.

Adding to 201010100 its reverse (1010102), we get a palindrome (202020202).

The spelling of 201010100 in words is "two hundred one million, ten thousand, one hundred".