2101021121012 has 12 divisors (see below), whose sum is σ = 4011040322016. Its totient is φ = 955009600440.

The previous prime is 2101021120997. The next prime is 2101021121047. The reversal of 2101021121012 is 2101211201012.

It is a super-2 number, since 2×2101021121012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23875239968 + ... + 23875240055.

It is an arithmetic number, because the mean of its divisors is an integer number (334253360168).

Almost surely, 2^{2101021121012} is an apocalyptic number.

2101021121012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2101021121012 is a deficient number, since it is larger than the sum of its proper divisors (1910019201004).

2101021121012 is a wasteful number, since it uses less digits than its factorization.

2101021121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47750480038 (or 47750480036 counting only the distinct ones).

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

Adding to 2101021121012 its reverse (2101211201012), we get a palindrome (4202232322024).

The spelling of 2101021121012 in words is "two trillion, one hundred one billion, twenty-one million, one hundred twenty-one thousand, twelve".