101111220228 has 24 divisors (see below), whose sum is σ = 236013217888. Its totient is φ = 33691306176.

The previous prime is 101111220209. The next prime is 101111220293. The reversal of 101111220228 is 822022111101.

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, 1520326 + ... + 1585437.

Almost surely, 2^101111220228 is an apocalyptic number.

It is an amenable number.

101111220228 is an abundant number, since it is smaller than the sum of its proper divisors (134901997660).

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

101111220228 is a wasteful number, since it uses less digits than its factorization.

101111220228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108483 (or 3108481 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 101111220228 its reverse (822022111101), we get a palindrome (923133331329).

The spelling of 101111220228 in words is "one hundred one billion, one hundred eleven million, two hundred twenty thousand, two hundred twenty-eight".