221110101021122 has 8 divisors (see below), whose sum is σ = 331665306294972. Its totient is φ = 110554998922800.

The previous prime is 221110101021113. The next prime is 221110101021137. The reversal of 221110101021122 is 221120101011122.

It can be written as a sum of positive squares in 2 ways, for example, as 220994120588641 + 115980432481 = 14865871^2 + 340559^2 .

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

It is a super-2 number, since 2×221110101021122² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221110101021122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20193029 + ... + 29154392.

Almost surely, 2^{221110101021122} is an apocalyptic number.

221110101021122 is a deficient number, since it is larger than the sum of its proper divisors (110555205273850).

221110101021122 is a wasteful number, since it uses less digits than its factorization.

221110101021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51587764.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 221110101021122 its reverse (221120101011122), we get a palindrome (442230202032244).

The spelling of 221110101021122 in words is "two hundred twenty-one trillion, one hundred ten billion, one hundred one million, twenty-one thousand, one hundred twenty-two".