221152002126 has 16 divisors (see below), whose sum is σ = 482513459328. Its totient is φ = 67015758200.

The previous prime is 221152002119. The next prime is 221152002133. The reversal of 221152002126 is 621200251122.

It is an interprime number because it is at equal distance from previous prime (221152002119) and next prime (221152002133).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 221152002096 and 221152002105.

It is a congruent number.

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, 1675393890 + ... + 1675394021.

It is an arithmetic number, because the mean of its divisors is an integer number (30157091208).

Almost surely, 2^221152002126 is an apocalyptic number.

221152002126 is an abundant number, since it is smaller than the sum of its proper divisors (261361457202).

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

221152002126 is a wasteful number, since it uses less digits than its factorization.

221152002126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350787927.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 221152002126 its reverse (621200251122), we get a palindrome (842352253248).

The spelling of 221152002126 in words is "two hundred twenty-one billion, one hundred fifty-two million, two thousand, one hundred twenty-six".