2100212120102 has 4 divisors (see below), whose sum is σ = 3150318180156. Its totient is φ = 1050106060050.

The previous prime is 2100212120101. The next prime is 2100212120131. The reversal of 2100212120102 is 2010212120012.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100212120101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525053030024 + ... + 525053030027.

It is an arithmetic number, because the mean of its divisors is an integer number (787579545039).

Almost surely, 2^{2100212120102} is an apocalyptic number.

2100212120102 is a deficient number, since it is larger than the sum of its proper divisors (1050106060054).

2100212120102 is a wasteful number, since it uses less digits than its factorization.

2100212120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050106060053.

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

Adding to 2100212120102 its reverse (2010212120012), we get a palindrome (4110424240114).

The spelling of 2100212120102 in words is "two trillion, one hundred billion, two hundred twelve million, one hundred twenty thousand, one hundred two".