1221141003415 has 8 divisors (see below), whose sum is σ = 1529080908768. Its totient is φ = 934438332960.

The previous prime is 1221141003409. The next prime is 1221141003493. The reversal of 1221141003415 is 5143001411221.

It is a happy number.

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

It is not a de Polignac number, because 1221141003415 - 2²⁵ = 1221107448983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1221141003415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5309308596 + ... + 5309308825.

It is an arithmetic number, because the mean of its divisors is an integer number (191135113596).

Almost surely, 2^{1221141003415} is an apocalyptic number.

1221141003415 is a deficient number, since it is larger than the sum of its proper divisors (307939905353).

1221141003415 is a wasteful number, since it uses less digits than its factorization.

1221141003415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10618617449.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 1221141003415 its reverse (5143001411221), we get a palindrome (6364142414636).

The spelling of 1221141003415 in words is "one trillion, two hundred twenty-one billion, one hundred forty-one million, three thousand, four hundred fifteen".