2021112102102 has 32 divisors (see below), whose sum is σ = 4052311991424. Its totient is φ = 672024225600.

The previous prime is 2021112102091. The next prime is 2021112102103. The reversal of 2021112102102 is 2012012111202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021112102103) 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, 5276077 + ... + 5646167.

It is an arithmetic number, because the mean of its divisors is an integer number (126634749732).

Almost surely, 2^{2021112102102} is an apocalyptic number.

2021112102102 is an abundant number, since it is smaller than the sum of its proper divisors (2031199889322).

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

2021112102102 is a wasteful number, since it uses less digits than its factorization.

2021112102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372364.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2021112102102 its reverse (2012012111202), we get a palindrome (4033124213304).

The spelling of 2021112102102 in words is "two trillion, twenty-one billion, one hundred twelve million, one hundred two thousand, one hundred two".