1041155511221 has 16 divisors (see below), whose sum is σ = 1190637158400. Its totient is φ = 891860357808.

The previous prime is 1041155511167. The next prime is 1041155511233. The reversal of 1041155511221 is 1221155511401.

It is not a de Polignac number, because 1041155511221 - 2¹⁸ = 1041155249077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1041155511251) 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, 136290920 + ... + 136298558.

It is an arithmetic number, because the mean of its divisors is an integer number (74414822400).

Almost surely, 2^{1041155511221} is an apocalyptic number.

It is an amenable number.

1041155511221 is a deficient number, since it is larger than the sum of its proper divisors (149481647179).

1041155511221 is an equidigital number, since it uses as much as digits as its factorization.

1041155511221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17288.

The product of its (nonzero) digits is 2000, while the sum is 29.

The spelling of 1041155511221 in words is "one trillion, forty-one billion, one hundred fifty-five million, five hundred eleven thousand, two hundred twenty-one".