210211400144 has 10 divisors (see below), whose sum is σ = 407284587810. Its totient is φ = 105105700064.

The previous prime is 210211400123. The next prime is 210211400173. The reversal of 210211400144 is 441004112012.

It can be written as a sum of positive squares in only one way, i.e., 109349262400 + 100862137744 = 330680^2 + 317588^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6569106239 + ... + 6569106270.

It is an arithmetic number, because the mean of its divisors is an integer number (40728458781).

Almost surely, 2^210211400144 is an apocalyptic number.

It is an amenable number.

210211400144 is a deficient number, since it is larger than the sum of its proper divisors (197073187666).

210211400144 is a wasteful number, since it uses less digits than its factorization.

210211400144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13138212517 (or 13138212511 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 210211400144 its reverse (441004112012), we get a palindrome (651215512156).

The spelling of 210211400144 in words is "two hundred ten billion, two hundred eleven million, four hundred thousand, one hundred forty-four".