3121221411019 has 2 divisors, whose sum is σ = 3121221411020. Its totient is φ = 3121221411018.

The previous prime is 3121221411013. The next prime is 3121221411037. The reversal of 3121221411019 is 9101141221213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3121221411019 - 2¹¹ = 3121221408971 is a prime.

It is a super-2 number, since 2×3121221411019² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3121221411013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560610705509 + 1560610705510.

It is an arithmetic number, because the mean of its divisors is an integer number (1560610705510).

Almost surely, 2^{3121221411019} is an apocalyptic number.

3121221411019 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121221411019 is an equidigital number, since it uses as much as digits as its factorization.

3121221411019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 3121221411019 in words is "three trillion, one hundred twenty-one billion, two hundred twenty-one million, four hundred eleven thousand, nineteen".