221432320101434 has 32 divisors (see below), whose sum is σ = 378755114055696. Its totient is φ = 96183815316480.

The previous prime is 221432320101427. The next prime is 221432320101463. The reversal of 221432320101434 is 434101023234122.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 146015201505625 + 75417118595809 = 12083675^2 + 8684303^2 .

It is a super-3 number, since 3×221432320101434³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221432320101434.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343004 + ... + 21047144.

Almost surely, 2^{221432320101434} is an apocalyptic number.

221432320101434 is a deficient number, since it is larger than the sum of its proper divisors (157322793954262).

221432320101434 is a wasteful number, since it uses less digits than its factorization.

221432320101434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20728370.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 221432320101434 its reverse (434101023234122), we get a palindrome (655533343335556).

The spelling of 221432320101434 in words is "two hundred twenty-one trillion, four hundred thirty-two billion, three hundred twenty million, one hundred one thousand, four hundred thirty-four".