1001111212010 has 128 divisors (see below), whose sum is σ = 2335199086080. Its totient is φ = 300079448064.

The previous prime is 1001111211977. The next prime is 1001111212019. The reversal of 1001111212010 is 102121111001.

It is a junction number, because it is equal to n+sod(n) for n = 1001111211982 and 1001111212000.

It is not an unprimeable number, because it can be changed into a prime (1001111212019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 109562162 + ... + 109571298.

It is an arithmetic number, because the mean of its divisors is an integer number (18243742860).

Almost surely, 2^{1001111212010} is an apocalyptic number.

1001111212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001111212010 is an abundant number, since it is smaller than the sum of its proper divisors (1334087874070).

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

1001111212010 is a wasteful number, since it uses less digits than its factorization.

1001111212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15520.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1001111212010 its reverse (102121111001), we get a palindrome (1103232323011).

It can be divided in two parts, 1001111 and 212010, that added together give a palindrome (1213121).

The spelling of 1001111212010 in words is "one trillion, one billion, one hundred eleven million, two hundred twelve thousand, ten".