101120212005 has 16 divisors (see below), whose sum is σ = 171309536064. Its totient is φ = 50758380800.

The previous prime is 101120212001. The next prime is 101120212007. The reversal of 101120212005 is 500212021101.

It is not a de Polignac number, because 101120212005 - 2² = 101120212001 is a prime.

It is a super-2 number, since 2×101120212005² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101120212001) 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, 198274671 + ... + 198275180.

It is an arithmetic number, because the mean of its divisors is an integer number (10706846004).

Almost surely, 2^101120212005 is an apocalyptic number.

101120212005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101120212005 is a deficient number, since it is larger than the sum of its proper divisors (70189324059).

101120212005 is a wasteful number, since it uses less digits than its factorization.

101120212005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396549876.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 101120212005 its reverse (500212021101), we get a palindrome (601332233106).

The spelling of 101120212005 in words is "one hundred one billion, one hundred twenty million, two hundred twelve thousand, five".