211012021102 has 4 divisors (see below), whose sum is σ = 316518031656. Its totient is φ = 105506010550.

The previous prime is 211012021091. The next prime is 211012021109. The reversal of 211012021102 is 201120210112.

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 (211012021109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52753005274 + ... + 52753005277.

It is an arithmetic number, because the mean of its divisors is an integer number (79129507914).

Almost surely, 2^211012021102 is an apocalyptic number.

211012021102 is a deficient number, since it is larger than the sum of its proper divisors (105506010554).

211012021102 is a wasteful number, since it uses less digits than its factorization.

211012021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105506010553.

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

Adding to 211012021102 its reverse (201120210112), we get a palindrome (412132231214).

The spelling of 211012021102 in words is "two hundred eleven billion, twelve million, twenty-one thousand, one hundred two".