1020100202220 has 96 divisors (see below), whose sum is σ = 3116621765376. Its totient is φ = 247243104000.

The previous prime is 1020100202207. The next prime is 1020100202243. The reversal of 1020100202220 is 222020010201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1020100202196 and 1020100202205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2903502 + ... + 3235818.

It is an arithmetic number, because the mean of its divisors is an integer number (32464810056).

Almost surely, 2^{1020100202220} is an apocalyptic number.

1020100202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020100202220 is an abundant number, since it is smaller than the sum of its proper divisors (2096521563156).

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

1020100202220 is a wasteful number, since it uses less digits than its factorization.

1020100202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336991 (or 336989 counting only the distinct ones).

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

Adding to 1020100202220 its reverse (222020010201), we get a palindrome (1242120212421).

The spelling of 1020100202220 in words is "one trillion, twenty billion, one hundred million, two hundred two thousand, two hundred twenty".