2021012012110 has 128 divisors (see below), whose sum is σ = 4530040058880. Its totient is φ = 632114233344.

The previous prime is 2021012012081. The next prime is 2021012012137. The reversal of 2021012012110 is 112102101202.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40773262 + ... + 40822798.

It is an arithmetic number, because the mean of its divisors is an integer number (35390937960).

Almost surely, 2^{2021012012110} is an apocalyptic number.

2021012012110 is an abundant number, since it is smaller than the sum of its proper divisors (2509028046770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021012012110 is a wasteful number, since it uses less digits than its factorization.

2021012012110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50090.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2021012012110 its reverse (112102101202), we get a palindrome (2133114113312).

The spelling of 2021012012110 in words is "two trillion, twenty-one billion, twelve million, twelve thousand, one hundred ten".