211102040 has 16 divisors (see below), whose sum is σ = 474979680. Its totient is φ = 84440800.

The previous prime is 211102009. The next prime is 211102079. The reversal of 211102040 is 40201112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2638736 + ... + 2638815.

It is an arithmetic number, because the mean of its divisors is an integer number (29686230).

Almost surely, 2^211102040 is an apocalyptic number.

211102040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211102040 is an abundant number, since it is smaller than the sum of its proper divisors (263877640).

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

211102040 is a wasteful number, since it uses less digits than its factorization.

211102040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5277562 (or 5277558 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 211102040 is about 14529.3509834404. The cubic root of 211102040 is about 595.4301340941.

Adding to 211102040 its reverse (40201112), we get a palindrome (251303152).

The spelling of 211102040 in words is "two hundred eleven million, one hundred two thousand, forty".