1001000102220 has 48 divisors (see below), whose sum is σ = 3114222541920. Its totient is φ = 266933360448.

The previous prime is 1001000102189. The next prime is 1001000102227. The reversal of 1001000102220 is 222010001001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1001000102227) 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, 926851407 + ... + 926852486.

It is an arithmetic number, because the mean of its divisors is an integer number (64879636290).

Almost surely, 2^{1001000102220} is an apocalyptic number.

1001000102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001000102220 is an abundant number, since it is smaller than the sum of its proper divisors (2113222439700).

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

1001000102220 is a wasteful number, since it uses less digits than its factorization.

1001000102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853703911 (or 1853703903 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1001000102220 its reverse (222010001001), we get a palindrome (1223010103221).

The spelling of 1001000102220 in words is "one trillion, one billion, one hundred two thousand, two hundred twenty".