2012121097 has 8 divisors (see below), whose sum is σ = 2342955456. Its totient is φ = 1692133872.

The previous prime is 2012121077. The next prime is 2012121107. The reversal of 2012121097 is 7901212102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012121097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012121017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2711383 + ... + 2712124.

It is an arithmetic number, because the mean of its divisors is an integer number (292869432).

Almost surely, 2^2012121097 is an apocalyptic number.

It is an amenable number.

2012121097 is a deficient number, since it is larger than the sum of its proper divisors (330834359).

2012121097 is an equidigital number, since it uses as much as digits as its factorization.

2012121097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5423567.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 2012121097 is about 44856.6728257904. The cubic root of 2012121097 is about 1262.4611961017.

Adding to 2012121097 its reverse (7901212102), we get a palindrome (9913333199).

The spelling of 2012121097 in words is "two billion, twelve million, one hundred twenty-one thousand, ninety-seven".