210021131120411 has 16 divisors (see below), whose sum is σ = 226410575359584. Its totient is φ = 193665190270464.

The previous prime is 210021131120357. The next prime is 210021131120417. The reversal of 210021131120411 is 114021131120012.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210021131120411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210021131120417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62484725 + ... + 65760041.

It is an arithmetic number, because the mean of its divisors is an integer number (14150660959974).

Almost surely, 2^{210021131120411} is an apocalyptic number.

210021131120411 is a deficient number, since it is larger than the sum of its proper divisors (16389444239173).

210021131120411 is a wasteful number, since it uses less digits than its factorization.

210021131120411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280430.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 210021131120411 its reverse (114021131120012), we get a palindrome (324042262240423).

The spelling of 210021131120411 in words is "two hundred ten trillion, twenty-one billion, one hundred thirty-one million, one hundred twenty thousand, four hundred eleven".