1020221202 has 128 divisors (see below), whose sum is σ = 2814271488. Its totient is φ = 237945600.

The previous prime is 1020221179. The next prime is 1020221231. The reversal of 1020221202 is 2021220201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 219927 + ... + 224517.

It is an arithmetic number, because the mean of its divisors is an integer number (21986496).

Almost surely, 2^1020221202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020221202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1407135744).

1020221202 is an abundant number, since it is smaller than the sum of its proper divisors (1794050286).

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

1020221202 is a wasteful number, since it uses less digits than its factorization.

1020221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664.

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

The square root of 1020221202 is about 31940.9017092505. The cubic root of 1020221202 is about 1006.6954712798.

Adding to 1020221202 its reverse (2021220201), we get a palindrome (3041441403).

It can be divided in two parts, 1020 and 221202, that added together give a palindrome (222222).

The spelling of 1020221202 in words is "one billion, twenty million, two hundred twenty-one thousand, two hundred two".