212121011332 has 12 divisors (see below), whose sum is σ = 371224972300. Its totient is φ = 106056733536.

The previous prime is 212121011317. The next prime is 212121011363. The reversal of 212121011332 is 233110121212.

It can be written as a sum of positive squares in 2 ways, for example, as 15531639876 + 196589371456 = 124626^2 + 443384^2 .

It is a super-3 number, since 3×212121011332³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814563 + ... + 1042954.

Almost surely, 2^212121011332 is an apocalyptic number.

It is an amenable number.

212121011332 is a deficient number, since it is larger than the sum of its proper divisors (159103960968).

212121011332 is a wasteful number, since it uses less digits than its factorization.

212121011332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886070 (or 1886068 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 212121011332 its reverse (233110121212), we get a palindrome (445231132544).

The spelling of 212121011332 in words is "two hundred twelve billion, one hundred twenty-one million, eleven thousand, three hundred thirty-two".