221350501131054 has 16 divisors (see below), whose sum is σ = 442720086948048. Its totient is φ = 73780319596032.

The previous prime is 221350501131043. The next prime is 221350501131113. The reversal of 221350501131054 is 450131105053122.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795044467 + ... + 795322830.

It is an arithmetic number, because the mean of its divisors is an integer number (27670005434253).

Almost surely, 2^{221350501131054} is an apocalyptic number.

221350501131054 is an abundant number, since it is smaller than the sum of its proper divisors (221369585816994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221350501131054 is a wasteful number, since it uses less digits than its factorization.

221350501131054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590390499.

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 221350501131054 its reverse (450131105053122), we get a palindrome (671481606184176).

The spelling of 221350501131054 in words is "two hundred twenty-one trillion, three hundred fifty billion, five hundred one million, one hundred thirty-one thousand, fifty-four".