2102111011202 has 4 divisors (see below), whose sum is σ = 3153166516806. Its totient is φ = 1051055505600.

The previous prime is 2102111011201. The next prime is 2102111011213. The reversal of 2102111011202 is 2021101112012.

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

It can be written as a sum of positive squares in only one way, i.e., 1253905008841 + 848206002361 = 1119779^2 + 920981^2 .

It is not an unprimeable number, because it can be changed into a prime (2102111011201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525527752799 + ... + 525527752802.

Almost surely, 2^{2102111011202} is an apocalyptic number.

2102111011202 is a deficient number, since it is larger than the sum of its proper divisors (1051055505604).

2102111011202 is a wasteful number, since it uses less digits than its factorization.

2102111011202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051055505603.

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

Adding to 2102111011202 its reverse (2021101112012), we get a palindrome (4123212123214).

The spelling of 2102111011202 in words is "two trillion, one hundred two billion, one hundred eleven million, eleven thousand, two hundred two".