1221412420315 has 32 divisors (see below), whose sum is σ = 1520676241920. Its totient is φ = 941032857600.

The previous prime is 1221412420309. The next prime is 1221412420321. The reversal of 1221412420315 is 5130242141221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1221412420309) and next prime (1221412420321).

It is not a de Polignac number, because 1221412420315 - 2³ = 1221412420307 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19952955 + ... + 20014075.

It is an arithmetic number, because the mean of its divisors is an integer number (47521132560).

Almost surely, 2^{1221412420315} is an apocalyptic number.

1221412420315 is a deficient number, since it is larger than the sum of its proper divisors (299263821605).

1221412420315 is a wasteful number, since it uses less digits than its factorization.

1221412420315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62263.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 1221412420315 its reverse (5130242141221), we get a palindrome (6351654561536).

The spelling of 1221412420315 in words is "one trillion, two hundred twenty-one billion, four hundred twelve million, four hundred twenty thousand, three hundred fifteen".