2412221021 has 8 divisors (see below), whose sum is σ = 2757167424. Its totient is φ = 2067360480.

The previous prime is 2412221017. The next prime is 2412221041. The reversal of 2412221021 is 1201222142.

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

It is a cyclic number.

It is not a de Polignac number, because 2412221021 - 2² = 2412221017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2412221041) 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, 58721 + ... + 90953.

It is an arithmetic number, because the mean of its divisors is an integer number (344645928).

Almost surely, 2^2412221021 is an apocalyptic number.

It is an amenable number.

2412221021 is a deficient number, since it is larger than the sum of its proper divisors (344946403).

2412221021 is a wasteful number, since it uses less digits than its factorization.

2412221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42931.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2412221021 is about 49114.3667474192. The cubic root of 2412221021 is about 1341.1345965241.

Adding to 2412221021 its reverse (1201222142), we get a palindrome (3613443163).

The spelling of 2412221021 in words is "two billion, four hundred twelve million, two hundred twenty-one thousand, twenty-one".