222421050 has 36 divisors (see below), whose sum is σ = 597572430. Its totient is φ = 59312160.

The previous prime is 222421027. The next prime is 222421093. The reversal of 222421050 is 50124222.

It can be written as a sum of positive squares in 3 ways, for example, as 180391761 + 42029289 = 13431^2 + 6483^2 .

It is a super-2 number, since 2×222421050² = 98942246966205000, which contains 22 as substring.

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 17 ways as a sum of consecutive naturals, for example, 246685 + ... + 247584.

Almost surely, 2^222421050 is an apocalyptic number.

222421050 is an abundant number, since it is smaller than the sum of its proper divisors (375151380).

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

222421050 is a wasteful number, since it uses less digits than its factorization.

222421050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494287 (or 494279 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 222421050 is about 14913.7872453646. The cubic root of 222421050 is about 605.8874574524.

Adding to 222421050 its reverse (50124222), we get a palindrome (272545272).

The spelling of 222421050 in words is "two hundred twenty-two million, four hundred twenty-one thousand, fifty".