1020102220 has 24 divisors (see below), whose sum is σ = 2142856800. Its totient is φ = 407918592.

The previous prime is 1020102203. The next prime is 1020102253. The reversal of 1020102220 is 222010201.

1020102220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1020102197 and 1020102206.

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, 93196 + ... + 103564.

It is an arithmetic number, because the mean of its divisors is an integer number (89285700).

Almost surely, 2^1020102220 is an apocalyptic number.

1020102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020102220 is an abundant number, since it is smaller than the sum of its proper divisors (1122754580).

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

1020102220 is a wasteful number, since it uses less digits than its factorization.

1020102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15297 (or 15295 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1020102220 is about 31939.0391214263. The cubic root of 1020102220 is about 1006.6563348988.

Adding to 1020102220 its reverse (222010201), we get a palindrome (1242112421).

The spelling of 1020102220 in words is "one billion, twenty million, one hundred two thousand, two hundred twenty".