101111212120010 has 16 divisors (see below), whose sum is σ = 182000356135272. Its totient is φ = 40444446110400.

The previous prime is 101111212120007. The next prime is 101111212120019. The reversal of 101111212120010 is 10021212111101.

It can be written as a sum of positive squares in 4 ways, for example, as 94563002371201 + 6548209748809 = 9724351^2 + 2558947^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (101111212120019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7656800 + ... + 16150820.

Almost surely, 2^{101111212120010} is an apocalyptic number.

101111212120010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101111212120010 is a deficient number, since it is larger than the sum of its proper divisors (80889144015262).

101111212120010 is a wasteful number, since it uses less digits than its factorization.

101111212120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9684409.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 101111212120010 its reverse (10021212111101), we get a palindrome (111132424231111).

The spelling of 101111212120010 in words is "one hundred one trillion, one hundred eleven billion, two hundred twelve million, one hundred twenty thousand, ten".