100021112011210 has 64 divisors (see below), whose sum is σ = 196038547639200. Its totient is φ = 36522524344320.

The previous prime is 100021112011169. The next prime is 100021112011211. The reversal of 100021112011210 is 12110211120001.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 13844627980569 + 86176484030641 = 3720837^2 + 9283129^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (100021112011211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 986361 + ... + 14177980.

Almost surely, 2^{100021112011210} is an apocalyptic number.

100021112011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100021112011210 is a deficient number, since it is larger than the sum of its proper divisors (96017435627990).

100021112011210 is a wasteful number, since it uses less digits than its factorization.

100021112011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15164923.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100021112011210 its reverse (12110211120001), we get a palindrome (112131323131211).

The spelling of 100021112011210 in words is "one hundred trillion, twenty-one billion, one hundred twelve million, eleven thousand, two hundred ten".