1020221120204 has 48 divisors (see below), whose sum is σ = 2098037319840. Its totient is φ = 427958730240.

The previous prime is 1020221120201. The next prime is 1020221120221. The reversal of 1020221120204 is 4020211220201.

It is a super-2 number, since 2×1020221120204² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020221120201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2110802 + ... + 2548710.

It is an arithmetic number, because the mean of its divisors is an integer number (43709110830).

Almost surely, 2^{1020221120204} is an apocalyptic number.

It is an amenable number.

1020221120204 is an abundant number, since it is smaller than the sum of its proper divisors (1077816199636).

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

1020221120204 is a wasteful number, since it uses less digits than its factorization.

1020221120204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442010 (or 442008 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1020221120204 its reverse (4020211220201), we get a palindrome (5040432340405).

The spelling of 1020221120204 in words is "one trillion, twenty billion, two hundred twenty-one million, one hundred twenty thousand, two hundred four".