221020130211000 has 128 divisors (see below), whose sum is σ = 693568835668800. Its totient is φ = 58598015116800.

The previous prime is 221020130210981. The next prime is 221020130211029. The reversal of 221020130211000 is 112031020122.

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

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 212409835 + ... + 213447834.

Almost surely, 2^{221020130211000} is an apocalyptic number.

221020130211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221020130211000 is an abundant number, since it is smaller than the sum of its proper divisors (472548705457800).

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

221020130211000 is a wasteful number, since it uses less digits than its factorization.

221020130211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425857866 (or 425857852 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 221020130211000 its reverse (112031020122), we get a palindrome (221132161231122).

The spelling of 221020130211000 in words is "two hundred twenty-one trillion, twenty billion, one hundred thirty million, two hundred eleven thousand".