1211052212532 has 36 divisors (see below), whose sum is σ = 3092830372996. Its totient is φ = 399522378240.

The previous prime is 1211052212507. The next prime is 1211052212551. The reversal of 1211052212532 is 2352122501121.

1211052212532 is a `hidden beast` number, since 1 + 2 + 1 + 10 + 522 + 125 + 3 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 816070129956 + 394982082576 = 903366^2 + 628476^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1211052212532² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211052212496 and 1211052212505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173400319 + ... + 173407302.

Almost surely, 2^{1211052212532} is an apocalyptic number.

1211052212532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1211052212532 is an abundant number, since it is smaller than the sum of its proper divisors (1881778160464).

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

1211052212532 is a wasteful number, since it uses less digits than its factorization.

1211052212532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346807728 (or 346807723 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 1211052212532 its reverse (2352122501121), we get a palindrome (3563174713653).

The spelling of 1211052212532 in words is "one trillion, two hundred eleven billion, fifty-two million, two hundred twelve thousand, five hundred thirty-two".