136221555134211 has 16 divisors (see below), whose sum is σ = 184707699822720. Its totient is φ = 89274898708160.

The previous prime is 136221555134207. The next prime is 136221555134281. The reversal of 136221555134211 is 112431555122631.

It is a cyclic number.

It is not a de Polignac number, because 136221555134211 - 2² = 136221555134207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136221555134281) 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, 82184116 + ... + 83825246.

It is an arithmetic number, because the mean of its divisors is an integer number (11544231238920).

Almost surely, 2^{136221555134211} is an apocalyptic number.

136221555134211 is a deficient number, since it is larger than the sum of its proper divisors (48486144688509).

136221555134211 is a wasteful number, since it uses less digits than its factorization.

136221555134211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110146.

The product of its digits is 216000, while the sum is 42.

The spelling of 136221555134211 in words is "one hundred thirty-six trillion, two hundred twenty-one billion, five hundred fifty-five million, one hundred thirty-four thousand, two hundred eleven".