211121011210004 has 48 divisors (see below), whose sum is σ = 422529068322816. Its totient is φ = 90418932115200.

The previous prime is 211121011209971. The next prime is 211121011210007. The reversal of 211121011210004 is 400012110121112.

It is a super-3 number, since 3×211121011210004³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121011210007) 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, 616382714 + ... + 616725134.

It is an arithmetic number, because the mean of its divisors is an integer number (8802688923392).

Almost surely, 2^{211121011210004} is an apocalyptic number.

It is an amenable number.

211121011210004 is an abundant number, since it is smaller than the sum of its proper divisors (211408057112812).

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

211121011210004 is a wasteful number, since it uses less digits than its factorization.

211121011210004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357336 (or 357334 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211121011210004 its reverse (400012110121112), we get a palindrome (611133121331116).

The spelling of 211121011210004 in words is "two hundred eleven trillion, one hundred twenty-one billion, eleven million, two hundred ten thousand, four".