212551021132 has 6 divisors (see below), whose sum is σ = 371964286988. Its totient is φ = 106275510564.

The previous prime is 212551021117. The next prime is 212551021183. The reversal of 212551021132 is 231120155212.

It is a happy number.

It is a super-2 number, since 2×212551021132² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212551021097 and 212551021106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26568877638 + ... + 26568877645.

Almost surely, 2^212551021132 is an apocalyptic number.

It is an amenable number.

212551021132 is a deficient number, since it is larger than the sum of its proper divisors (159413265856).

212551021132 is a wasteful number, since it uses less digits than its factorization.

212551021132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53137755287 (or 53137755285 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 212551021132 its reverse (231120155212), we get a palindrome (443671176344).

The spelling of 212551021132 in words is "two hundred twelve billion, five hundred fifty-one million, twenty-one thousand, one hundred thirty-two".