210212401405 has 16 divisors (see below), whose sum is σ = 257821812864. Its totient is φ = 164498756800.

The previous prime is 210212401391. The next prime is 210212401429. The reversal of 210212401405 is 504104212012.

It is not a de Polignac number, because 210212401405 - 2²⁵ = 210178846973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2465689 + ... + 2549518.

It is an arithmetic number, because the mean of its divisors is an integer number (16113863304).

Almost surely, 2^210212401405 is an apocalyptic number.

It is an amenable number.

210212401405 is a deficient number, since it is larger than the sum of its proper divisors (47609411459).

210212401405 is a wasteful number, since it uses less digits than its factorization.

210212401405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015396.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 210212401405 its reverse (504104212012), we get a palindrome (714316613417).

The spelling of 210212401405 in words is "two hundred ten billion, two hundred twelve million, four hundred one thousand, four hundred five".