4115222737921 has 4 divisors (see below), whose sum is σ = 4115374110144. Its totient is φ = 4115071365700.

The previous prime is 4115222737891. The next prime is 4115222737933. The reversal of 4115222737921 is 1297372225114.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4115222737921 - 2¹¹ = 4115222735873 is a prime.

It is a super-2 number, since 2×4115222737921² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4115222737321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75645325 + ... + 75699706.

It is an arithmetic number, because the mean of its divisors is an integer number (1028843527536).

Almost surely, 2^{4115222737921} is an apocalyptic number.

It is an amenable number.

4115222737921 is a deficient number, since it is larger than the sum of its proper divisors (151372223).

4115222737921 is a wasteful number, since it uses less digits than its factorization.

4115222737921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151372222.

The product of its digits is 423360, while the sum is 46.

The spelling of 4115222737921 in words is "four trillion, one hundred fifteen billion, two hundred twenty-two million, seven hundred thirty-seven thousand, nine hundred twenty-one".