220001001212 has 6 divisors (see below), whose sum is σ = 385001752128. Its totient is φ = 110000500604.

The previous prime is 220001001133. The next prime is 220001001217. The reversal of 220001001212 is 212100100022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220001001193 and 220001001202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220001001217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27500125148 + ... + 27500125155.

It is an arithmetic number, because the mean of its divisors is an integer number (64166958688).

Almost surely, 2^220001001212 is an apocalyptic number.

It is an amenable number.

220001001212 is a deficient number, since it is larger than the sum of its proper divisors (165000750916).

220001001212 is a wasteful number, since it uses less digits than its factorization.

220001001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55000250307 (or 55000250305 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 220001001212 its reverse (212100100022), we get a palindrome (432101101234).

The spelling of 220001001212 in words is "two hundred twenty billion, one million, one thousand, two hundred twelve".