221150551126263 has 16 divisors (see below), whose sum is σ = 321676887389952. Its totient is φ = 134029237680000.

The previous prime is 221150551126259. The next prime is 221150551126301. The reversal of 221150551126263 is 362621155051122.

It is a happy number.

It is not a de Polignac number, because 221150551126263 - 2² = 221150551126259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221150551126163) 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, 31771138 + ... + 38101263.

It is an arithmetic number, because the mean of its divisors is an integer number (20104805461872).

Almost surely, 2^{221150551126263} is an apocalyptic number.

221150551126263 is a deficient number, since it is larger than the sum of its proper divisors (100526336263689).

221150551126263 is a wasteful number, since it uses less digits than its factorization.

221150551126263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69968326.

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

The spelling of 221150551126263 in words is "two hundred twenty-one trillion, one hundred fifty billion, five hundred fifty-one million, one hundred twenty-six thousand, two hundred sixty-three".