3345126021 has 24 divisors (see below), whose sum is σ = 5057994240. Its totient is φ = 2127736800.

The previous prime is 3345126011. The next prime is 3345126061. The reversal of 3345126021 is 1206215433.

3345126021 is a `hidden beast` number, since 3 + 3 + 4 + 51 + 2 + 602 + 1 = 666.

It is not a de Polignac number, because 3345126021 - 2⁷ = 3345125893 is a prime.

It is a super-2 number, since 2×3345126021² = 22379736192742584882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3345126011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64626 + ... + 104243.

It is an arithmetic number, because the mean of its divisors is an integer number (210749760).

Almost surely, 2^3345126021 is an apocalyptic number.

3345126021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3345126021 is a deficient number, since it is larger than the sum of its proper divisors (1712868219).

3345126021 is a wasteful number, since it uses less digits than its factorization.

3345126021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168977 (or 168974 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 3345126021 is about 57837.0644223927. The cubic root of 3345126021 is about 1495.5611024163.

The spelling of 3345126021 in words is "three billion, three hundred forty-five million, one hundred twenty-six thousand, twenty-one".