1020201202220 has 24 divisors (see below), whose sum is σ = 2142530427408. Its totient is φ = 408059928000.

The previous prime is 1020201202177. The next prime is 1020201202301. The reversal of 1020201202220 is 222021020201.

It is a super-2 number, since 2×1020201202220² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020201202195 and 1020201202204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874331 + ... + 1674770.

It is an arithmetic number, because the mean of its divisors is an integer number (89272101142).

Almost surely, 2^{1020201202220} is an apocalyptic number.

1020201202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020201202220 is an abundant number, since it is smaller than the sum of its proper divisors (1122329225188).

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

1020201202220 is a wasteful number, since it uses less digits than its factorization.

1020201202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569121 (or 2569119 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1020201202220 its reverse (222021020201), we get a palindrome (1242222222421).

The spelling of 1020201202220 in words is "one trillion, twenty billion, two hundred one million, two hundred two thousand, two hundred twenty".