221220414107 has 32 divisors (see below), whose sum is σ = 283486984704. Its totient is φ = 167587142400.

The previous prime is 221220414097. The next prime is 221220414109. The reversal of 221220414107 is 701414022122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 221220414107 - 2⁶ = 221220414043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221220414109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3625007 + ... + 3685527.

It is an arithmetic number, because the mean of its divisors is an integer number (8858968272).

Almost surely, 2^221220414107 is an apocalyptic number.

221220414107 is a deficient number, since it is larger than the sum of its proper divisors (62266570597).

221220414107 is a wasteful number, since it uses less digits than its factorization.

221220414107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61859.

The product of its (nonzero) digits is 1792, while the sum is 26.

Adding to 221220414107 its reverse (701414022122), we get a palindrome (922634436229).

The spelling of 221220414107 in words is "two hundred twenty-one billion, two hundred twenty million, four hundred fourteen thousand, one hundred seven".