220262121243 has 12 divisors (see below), whose sum is σ = 322183694560. Its totient is φ = 144982661616.

The previous prime is 220262121223. The next prime is 220262121271. The reversal of 220262121243 is 342121262022.

220262121243 is a `hidden beast` number, since 2 + 20 + 2 + 621 + 2 + 12 + 4 + 3 = 666.

It is not a de Polignac number, because 220262121243 - 2²¹ = 220260024091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220262121223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154895296 + ... + 154896717.

Almost surely, 2^220262121243 is an apocalyptic number.

220262121243 is a deficient number, since it is larger than the sum of its proper divisors (101921573317).

220262121243 is a wasteful number, since it uses less digits than its factorization.

220262121243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309792098 (or 309792095 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 220262121243 its reverse (342121262022), we get a palindrome (562383383265).

The spelling of 220262121243 in words is "two hundred twenty billion, two hundred sixty-two million, one hundred twenty-one thousand, two hundred forty-three".