2112121001012 has 24 divisors (see below), whose sum is σ = 4033257084192. Its totient is φ = 959810695200.

The previous prime is 2112121000999. The next prime is 2112121001017. The reversal of 2112121001012 is 2101001212112.

It is a super-2 number, since 2×2112121001012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112121001017) 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, 5932703 + ... + 6278630.

It is an arithmetic number, because the mean of its divisors is an integer number (168052378508).

Almost surely, 2^{2112121001012} is an apocalyptic number.

2112121001012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2112121001012 is a deficient number, since it is larger than the sum of its proper divisors (1921136083180).

2112121001012 is a wasteful number, since it uses less digits than its factorization.

2112121001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12215279 (or 12215277 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2112121001012 its reverse (2101001212112), we get a palindrome (4213122213124).

The spelling of 2112121001012 in words is "two trillion, one hundred twelve billion, one hundred twenty-one million, one thousand, twelve".