221103213000 has 64 divisors (see below), whose sum is σ = 689842033920. Its totient is φ = 58960856000.

The previous prime is 221103212989. The next prime is 221103213011. The reversal of 221103213000 is 312301122.

It is an interprime number because it is at equal distance from previous prime (221103212989) and next prime (221103213011).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 36847536 + ... + 36853535.

It is an arithmetic number, because the mean of its divisors is an integer number (10778781780).

Almost surely, 2^221103213000 is an apocalyptic number.

221103213000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221103213000 is an abundant number, since it is smaller than the sum of its proper divisors (468738820920).

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

221103213000 is a wasteful number, since it uses less digits than its factorization.

221103213000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73701095 (or 73701081 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 221103213000 its reverse (312301122), we get a palindrome (221415514122).

The spelling of 221103213000 in words is "two hundred twenty-one billion, one hundred three million, two hundred thirteen thousand".