212021122132 has 12 divisors (see below), whose sum is σ = 390565225120. Its totient is φ = 100431057816.

The previous prime is 212021122129. The next prime is 212021122171. The reversal of 212021122132 is 231221120212.

It is a super-2 number, since 2×212021122132² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

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, 1394875728 + ... + 1394875879.

Almost surely, 2^212021122132 is an apocalyptic number.

It is an amenable number.

212021122132 is a deficient number, since it is larger than the sum of its proper divisors (178544102988).

212021122132 is a wasteful number, since it uses less digits than its factorization.

212021122132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789751630 (or 2789751628 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 212021122132 its reverse (231221120212), we get a palindrome (443242242344).

It can be divided in two parts, 212021 and 122132, that added together give a triangular number (334153 = T₈₁₇).

The spelling of 212021122132 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-two thousand, one hundred thirty-two".