212213201004 has 72 divisors (see below), whose sum is σ = 621695063808. Its totient is φ = 59778361440.

The previous prime is 212213200963. The next prime is 212213201047. The reversal of 212213201004 is 400102312212.

It is a happy number.

212213201004 is a `hidden beast` number, since 21 + 221 + 320 + 100 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5912502 + ... + 5948285.

It is an arithmetic number, because the mean of its divisors is an integer number (8634653664).

Almost surely, 2^212213201004 is an apocalyptic number.

It is an amenable number.

212213201004 is an abundant number, since it is smaller than the sum of its proper divisors (409481862804).

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

212213201004 is a wasteful number, since it uses less digits than its factorization.

212213201004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11860875 (or 11860870 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212213201004 its reverse (400102312212), we get a palindrome (612315513216).

The spelling of 212213201004 in words is "two hundred twelve billion, two hundred thirteen million, two hundred one thousand, four".