1150221050531 has 16 divisors (see below), whose sum is σ = 1339522510848. Its totient is φ = 967307054400.

The previous prime is 1150221050501. The next prime is 1150221050557. The reversal of 1150221050531 is 1350501220511.

It is a cyclic number.

It is not a de Polignac number, because 1150221050531 - 2¹⁰ = 1150221049507 is a prime.

It is a super-2 number, since 2×1150221050531² (a number of 25 digits) contains 22 as substring.

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 1150221050531.

It is not an unprimeable number, because it can be changed into a prime (1150221050501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5794865 + ... + 5990066.

It is an arithmetic number, because the mean of its divisors is an integer number (83720156928).

Almost surely, 2^{1150221050531} is an apocalyptic number.

1150221050531 is a deficient number, since it is larger than the sum of its proper divisors (189301460317).

1150221050531 is a wasteful number, since it uses less digits than its factorization.

1150221050531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11785202.

The product of its (nonzero) digits is 1500, while the sum is 26.

The spelling of 1150221050531 in words is "one trillion, one hundred fifty billion, two hundred twenty-one million, fifty thousand, five hundred thirty-one".