211212021041 has 8 divisors (see below), whose sum is σ = 246311395200. Its totient is φ = 181038874884.

The previous prime is 211212021001. The next prime is 211212021049. The reversal of 211212021041 is 140120212112.

It is not a de Polignac number, because 211212021041 - 2¹⁰ = 211212020017 is a prime.

It is a super-2 number, since 2×211212021041² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211212021049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307888901 + ... + 307889586.

It is an arithmetic number, because the mean of its divisors is an integer number (30788924400).

Almost surely, 2^211212021041 is an apocalyptic number.

It is an amenable number.

211212021041 is a deficient number, since it is larger than the sum of its proper divisors (35099374159).

211212021041 is an frugal number, since it uses more digits than its factorization.

211212021041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615778508 (or 615778494 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211212021041 its reverse (140120212112), we get a palindrome (351332233153).

The spelling of 211212021041 in words is "two hundred eleven billion, two hundred twelve million, twenty-one thousand, forty-one".