2102021021012 has 24 divisors (see below), whose sum is σ = 4013406859392. Its totient is φ = 955355139200.

The previous prime is 2102021020973. The next prime is 2102021021021. The reversal of 2102021021012 is 2101201202012.

It is a super-4 number, since 4×2102021021012⁴ (a number of 50 digits) contains 4444 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 7 ways as a sum of consecutive naturals, for example, 2333189 + ... + 3106092.

It is an arithmetic number, because the mean of its divisors is an integer number (167225285808).

Almost surely, 2^{2102021021012} is an apocalyptic number.

2102021021012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2102021021012 is a deficient number, since it is larger than the sum of its proper divisors (1911385838380).

2102021021012 is a wasteful number, since it uses less digits than its factorization.

2102021021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5448079 (or 5448077 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2102021021012 its reverse (2101201202012), we get a palindrome (4203222223024).

The spelling of 2102021021012 in words is "two trillion, one hundred two billion, twenty-one million, twenty-one thousand, twelve".