2912121 has 12 divisors (see below), whose sum is σ = 4221360. Its totient is φ = 1934520.

The previous prime is 2912081. The next prime is 2912131. The reversal of 2912121 is 1212192.

It is not a de Polignac number, because 2912121 - 2¹¹ = 2910073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2912094 and 2912103.

It is not an unprimeable number, because it can be changed into a prime (2912131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4090 + ... + 4748.

It is an arithmetic number, because the mean of its divisors is an integer number (351780).

2^2912121 is an apocalyptic number.

It is an amenable number.

2912121 is a deficient number, since it is larger than the sum of its proper divisors (1309239).

2912121 is a wasteful number, since it uses less digits than its factorization.

2912121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 1153 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 2912121 is about 1706.4937737947. The cubic root of 2912121 is about 142.8027175059.

The spelling of 2912121 in words is "two million, nine hundred twelve thousand, one hundred twenty-one".