221202211120 has 80 divisors (see below), whose sum is σ = 585442743552. Its totient is φ = 76939892480.

The previous prime is 221202211099. The next prime is 221202211147. The reversal of 221202211120 is 21112202122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 221202211094 and 221202211103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5444242 + ... + 5484721.

Almost surely, 2^221202211120 is an apocalyptic number.

221202211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221202211120 is an abundant number, since it is smaller than the sum of its proper divisors (364240532432).

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

221202211120 is a wasteful number, since it uses less digits than its factorization.

221202211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10929010 (or 10929004 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221202211120 its reverse (21112202122), we get a palindrome (242314413242).

The spelling of 221202211120 in words is "two hundred twenty-one billion, two hundred two million, two hundred eleven thousand, one hundred twenty".