12201211021012 has 12 divisors (see below), whose sum is σ = 22994590001236. Its totient is φ = 5631328163520.

The previous prime is 12201211020991. The next prime is 12201211021039. The reversal of 12201211021012 is 21012011210221.

It can be written as a sum of positive squares in 2 ways, for example, as 7721029198276 + 4480181822736 = 2778674^2 + 2116644^2 .

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, 117319336689 + ... + 117319336792.

Almost surely, 2^{12201211021012} is an apocalyptic number.

It is an amenable number.

12201211021012 is a deficient number, since it is larger than the sum of its proper divisors (10793378980224).

12201211021012 is a wasteful number, since it uses less digits than its factorization.

12201211021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234638673498 (or 234638673496 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12201211021012 its reverse (21012011210221), we get a palindrome (33213222231233).

The spelling of 12201211021012 in words is "twelve trillion, two hundred one billion, two hundred eleven million, twenty-one thousand, twelve".