201422700 has 162 divisors, whose sum is σ = 657733076. Its totient is φ = 53537760.

The previous prime is 201422693. The next prime is 201422723. The reversal of 201422700 is 7224102.

It is a tau number, because it is divible by the number of its divisors (162).

It is a super-2 number, since 2×201422700² = 81142208150580000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 655947 + ... + 656253.

Almost surely, 2^201422700 is an apocalyptic number.

201422700 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 201422700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328866538).

201422700 is an abundant number, since it is smaller than the sum of its proper divisors (456310376).

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

201422700 is an equidigital number, since it uses as much as digits as its factorization.

201422700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 201422700 is about 14192.3465290275. The cubic root of 201422700 is about 586.1869392362.

Adding to 201422700 its reverse (7224102), we get a palindrome (208646802).

The spelling of 201422700 in words is "two hundred one million, four hundred twenty-two thousand, seven hundred".