212021101130 has 16 divisors (see below), whose sum is σ = 381643500744. Its totient is φ = 84807214080.

The previous prime is 212021101121. The next prime is 212021101151. The reversal of 212021101130 is 31101120212.

It can be written as a sum of positive squares in 4 ways, for example, as 210509368969 + 1511732161 = 458813^2 + 38881^2 .

It is a super-3 number, since 3×212021101130³ (a number of 35 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 952994 + ... + 1154226.

Almost surely, 2^212021101130 is an apocalyptic number.

212021101130 is a deficient number, since it is larger than the sum of its proper divisors (169622399614).

212021101130 is a wasteful number, since it uses less digits than its factorization.

212021101130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306601.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 212021101130 its reverse (31101120212), we get a palindrome (243122221342).

The spelling of 212021101130 in words is "two hundred twelve billion, twenty-one million, one hundred one thousand, one hundred thirty".