221020001202 has 192 divisors, whose sum is σ = 612906200064. Its totient is φ = 51558923520.

The previous prime is 221020001159. The next prime is 221020001203. The reversal of 221020001202 is 202100020122.

It is not an unprimeable number, because it can be changed into a prime (221020001203) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2850633 + ... + 2927139.

It is an arithmetic number, because the mean of its divisors is an integer number (3192219792).

Almost surely, 2^221020001202 is an apocalyptic number.

221020001202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 221020001202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306453100032).

221020001202 is an abundant number, since it is smaller than the sum of its proper divisors (391886198862).

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

221020001202 is a wasteful number, since it uses less digits than its factorization.

221020001202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76593 (or 76580 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 221020001202 its reverse (202100020122), we get a palindrome (423120021324).

The spelling of 221020001202 in words is "two hundred twenty-one billion, twenty million, one thousand, two hundred two".