221441011402 has 8 divisors (see below), whose sum is σ = 357712403076. Its totient is φ = 102203543712.

The previous prime is 221441011369. The next prime is 221441011469. The reversal of 221441011402 is 204110144122.

It can be written as a sum of positive squares in 2 ways, for example, as 194252629081 + 27188382321 = 440741^2 + 164889^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×221441011402² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4258480963 + ... + 4258481014.

Almost surely, 2^221441011402 is an apocalyptic number.

221441011402 is a deficient number, since it is larger than the sum of its proper divisors (136271391674).

221441011402 is a wasteful number, since it uses less digits than its factorization.

221441011402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8516961992.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 221441011402 its reverse (204110144122), we get a palindrome (425551155524).

The spelling of 221441011402 in words is "two hundred twenty-one billion, four hundred forty-one million, eleven thousand, four hundred two".