220211004 has 24 divisors (see below), whose sum is σ = 553351120. Its totient is φ = 67757184.

The previous prime is 220211003. The next prime is 220211021. The reversal of 220211004 is 400112022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220211003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705649 + ... + 705960.

Almost surely, 2^220211004 is an apocalyptic number.

It is an amenable number.

220211004 is an abundant number, since it is smaller than the sum of its proper divisors (333140116).

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

220211004 is a wasteful number, since it uses less digits than its factorization.

220211004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411629 (or 1411627 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 220211004 is about 14839.5082128755. The cubic root of 220211004 is about 603.8740106790.

Adding to 220211004 its reverse (400112022), we get a palindrome (620323026).

The spelling of 220211004 in words is "two hundred twenty million, two hundred eleven thousand, four".