2001012113122 has 32 divisors (see below), whose sum is σ = 3298284380160. Its totient is φ = 902913184080.

The previous prime is 2001012113119. The next prime is 2001012113123. The reversal of 2001012113122 is 2213112101002.

It is a junction number, because it is equal to n+sod(n) for n = 2001012113096 and 2001012113105.

It is not an unprimeable number, because it can be changed into a prime (2001012113123) 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, 35221183 + ... + 35277949.

It is an arithmetic number, because the mean of its divisors is an integer number (103071386880).

Almost surely, 2^{2001012113122} is an apocalyptic number.

2001012113122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2001012113122 is a deficient number, since it is larger than the sum of its proper divisors (1297272267038).

2001012113122 is a wasteful number, since it uses less digits than its factorization.

2001012113122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68446.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2001012113122 its reverse (2213112101002), we get a palindrome (4214124214124).

The spelling of 2001012113122 in words is "two trillion, one billion, twelve million, one hundred thirteen thousand, one hundred twenty-two".