1214551155111 has 16 divisors (see below), whose sum is σ = 1850774400000. Its totient is φ = 694018063008.

The previous prime is 1214551155067. The next prime is 1214551155131. The reversal of 1214551155111 is 1115511554121.

It is not a de Polignac number, because 1214551155111 - 2¹⁰ = 1214551154087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214551155131) 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, 974265 + ... + 1838013.

It is an arithmetic number, because the mean of its divisors is an integer number (115673400000).

Almost surely, 2^{1214551155111} is an apocalyptic number.

1214551155111 is a deficient number, since it is larger than the sum of its proper divisors (636223244889).

1214551155111 is an equidigital number, since it uses as much as digits as its factorization.

1214551155111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930718.

The product of its digits is 5000, while the sum is 33.

The spelling of 1214551155111 in words is "one trillion, two hundred fourteen billion, five hundred fifty-one million, one hundred fifty-five thousand, one hundred eleven".