146201612121 has 8 divisors (see below), whose sum is σ = 216594980960. Its totient is φ = 97467741396.

The previous prime is 146201612107. The next prime is 146201612131. The reversal of 146201612121 is 121216102641.

146201612121 is a `hidden beast` number, since 1 + 4 + 6 + 20 + 1 + 612 + 1 + 21 = 666.

It is not a de Polignac number, because 146201612121 - 2¹⁸ = 146201349977 is a prime.

It is a super-2 number, since 2×146201612121² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 5414874523 = 146201612121 / (1 + 4 + 6 + 2 + 0 + 1 + 6 + 1 + 2 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146201612131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2707437235 + ... + 2707437288.

It is an arithmetic number, because the mean of its divisors is an integer number (27074372620).

Almost surely, 2^146201612121 is an apocalyptic number.

It is an amenable number.

146201612121 is a deficient number, since it is larger than the sum of its proper divisors (70393368839).

146201612121 is an equidigital number, since it uses as much as digits as its factorization.

146201612121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5414874532 (or 5414874526 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

Adding to 146201612121 its reverse (121216102641), we get a palindrome (267417714762).

The spelling of 146201612121 in words is "one hundred forty-six billion, two hundred one million, six hundred twelve thousand, one hundred twenty-one".