220212001242 has 20 divisors (see below), whose sum is σ = 493438003146. Its totient is φ = 73404000360.

The previous prime is 220212001241. The next prime is 220212001301. The reversal of 220212001242 is 242100212022.

220212001242 is a `hidden beast` number, since 220 + 2 + 1 + 200 + 1 + 242 = 666.

It can be written as a sum of positive squares in only one way, i.e., 203968753641 + 16243247601 = 451629^2 + 127449^2 .

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

It is not an unprimeable number, because it can be changed into a prime (220212001241) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 679666509 + ... + 679666832.

Almost surely, 2^220212001242 is an apocalyptic number.

220212001242 is an abundant number, since it is smaller than the sum of its proper divisors (273226001904).

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

220212001242 is a wasteful number, since it uses less digits than its factorization.

220212001242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359333355 (or 1359333346 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 220212001242 its reverse (242100212022), we get a palindrome (462312213264).

The spelling of 220212001242 in words is "two hundred twenty billion, two hundred twelve million, one thousand, two hundred forty-two".