1012412121 has 16 divisors (see below), whose sum is σ = 1545443328. Its totient is φ = 577501200.

The previous prime is 1012412099. The next prime is 1012412129. The reversal of 1012412121 is 1212142101.

It is not a de Polignac number, because 1012412121 - 2⁷ = 1012411993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1012412121.

It is not an unprimeable number, because it can be changed into a prime (1012412129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30225 + ... + 54206.

It is an arithmetic number, because the mean of its divisors is an integer number (96590208).

Almost surely, 2^1012412121 is an apocalyptic number.

It is an amenable number.

1012412121 is a deficient number, since it is larger than the sum of its proper divisors (533031207).

1012412121 is an equidigital number, since it uses as much as digits as its factorization.

1012412121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85012.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1012412121 is about 31818.4242381674. The cubic root of 1012412121 is about 1004.1203728762.

Adding to 1012412121 its reverse (1212142101), we get a palindrome (2224554222).

The spelling of 1012412121 in words is "one billion, twelve million, four hundred twelve thousand, one hundred twenty-one".