201401412121 has 32 divisors (see below), whose sum is σ = 249663859200. Its totient is φ = 158206901760.

The previous prime is 201401412109. The next prime is 201401412127. The reversal of 201401412121 is 121214104102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 201401412121 - 2⁵ = 201401412089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201401412127) 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, 7467741 + ... + 7494661.

It is an arithmetic number, because the mean of its divisors is an integer number (7801995600).

Almost surely, 2^201401412121 is an apocalyptic number.

It is an amenable number.

201401412121 is a deficient number, since it is larger than the sum of its proper divisors (48262447079).

201401412121 is a wasteful number, since it uses less digits than its factorization.

201401412121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27529.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201401412121 its reverse (121214104102), we get a palindrome (322615516223).

The spelling of 201401412121 in words is "two hundred one billion, four hundred one million, four hundred twelve thousand, one hundred twenty-one".