201400122 has 64 divisors (see below), whose sum is σ = 531753984. Its totient is φ = 49232640.

The previous prime is 201400109. The next prime is 201400127. The reversal of 201400122 is 221004102.

It is a super-2 number, since 2×201400122² = 81124018283229768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201400098 and 201400107.

It is not an unprimeable number, because it can be changed into a prime (201400127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4968 + ... + 20675.

It is an arithmetic number, because the mean of its divisors is an integer number (8308656).

Almost surely, 2^201400122 is an apocalyptic number.

201400122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201400122 is an abundant number, since it is smaller than the sum of its proper divisors (330353862).

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

201400122 is a wasteful number, since it uses less digits than its factorization.

201400122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25683.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 201400122 is about 14191.5510780182. The cubic root of 201400122 is about 586.1650360061.

Adding to 201400122 its reverse (221004102), we get a palindrome (422404224).

The spelling of 201400122 in words is "two hundred one million, four hundred thousand, one hundred twenty-two".