212220011012 has 12 divisors (see below), whose sum is σ = 371411016396. Its totient is φ = 106102577760.

The previous prime is 212220011009. The next prime is 212220011021. The reversal of 212220011012 is 210110022212.

It can be written as a sum of positive squares in 2 ways, for example, as 76194769156 + 136025241856 = 276034^2 + 368816^2 .

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, 1792403 + ... + 1907130.

It is an arithmetic number, because the mean of its divisors is an integer number (30950918033).

Almost surely, 2^212220011012 is an apocalyptic number.

It is an amenable number.

212220011012 is a deficient number, since it is larger than the sum of its proper divisors (159191005384).

212220011012 is a wasteful number, since it uses less digits than its factorization.

212220011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713878 (or 3713876 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212220011012 its reverse (210110022212), we get a palindrome (422330033224).

The spelling of 212220011012 in words is "two hundred twelve billion, two hundred twenty million, eleven thousand, twelve".