211545202102 has 24 divisors (see below), whose sum is σ = 343644560424. Its totient is φ = 97624859904.

The previous prime is 211545202069. The next prime is 211545202199. The reversal of 211545202102 is 201202545112.

It is a super-3 number, since 3×211545202102³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3322438 + ... + 3385510.

It is an arithmetic number, because the mean of its divisors is an integer number (14318523351).

Almost surely, 2^211545202102 is an apocalyptic number.

211545202102 is a deficient number, since it is larger than the sum of its proper divisors (132099358322).

211545202102 is a wasteful number, since it uses less digits than its factorization.

211545202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73024 (or 73011 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 211545202102 its reverse (201202545112), we get a palindrome (412747747214).

The spelling of 211545202102 in words is "two hundred eleven billion, five hundred forty-five million, two hundred two thousand, one hundred two".