100002020021010 has 96 divisors (see below), whose sum is σ = 260241035915952. Its totient is φ = 26643026165760.

The previous prime is 100002020020999. The next prime is 100002020021021. The reversal of 100002020021010 is 10120020200001.

It is an interprime number because it is at equal distance from previous prime (100002020020999) and next prime (100002020021021).

It can be written as a sum of positive squares in 8 ways, for example, as 25188463853721 + 74813556167289 = 5018811^2 + 8649483^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 100002020020983 and 100002020021001.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1581252990 + ... + 1581316230.

Almost surely, 2^{100002020021010} is an apocalyptic number.

100002020021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100002020021010 is an abundant number, since it is smaller than the sum of its proper divisors (160239015894942).

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

100002020021010 is a wasteful number, since it uses less digits than its factorization.

100002020021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78908 (or 78905 counting only the distinct ones).

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

Adding to 100002020021010 its reverse (10120020200001), we get a palindrome (110122040221011).

The spelling of 100002020021010 in words is "one hundred trillion, two billion, twenty million, twenty-one thousand, ten".