221211120011120 has 40 divisors (see below), whose sum is σ = 514383466306464. Its totient is φ = 88472815784192.

The previous prime is 221211120011117. The next prime is 221211120011159. The reversal of 221211120011120 is 21110021112122.

It is a tau number, because it is divible by the number of its divisors (40).

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, 181141079 + ... + 182358198.

Almost surely, 2^{221211120011120} is an apocalyptic number.

221211120011120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221211120011120 is an abundant number, since it is smaller than the sum of its proper divisors (293172346295344).

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

221211120011120 is a wasteful number, since it uses less digits than its factorization.

221211120011120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363506897 (or 363506891 counting only the distinct ones).

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

Adding to 221211120011120 its reverse (21110021112122), we get a palindrome (242321141123242).

The spelling of 221211120011120 in words is "two hundred twenty-one trillion, two hundred eleven billion, one hundred twenty million, eleven thousand, one hundred twenty".