1220102212338 has 12 divisors (see below), whose sum is σ = 2643554793438. Its totient is φ = 406700737440.

The previous prime is 1220102212337. The next prime is 1220102212339. The reversal of 1220102212338 is 8332122010221.

1220102212338 is a `hidden beast` number, since 1 + 2 + 201 + 0 + 221 + 233 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (1220102212337) and next prime (1220102212339).

It can be written as a sum of positive squares in only one way, i.e., 1215565785729 + 4536426609 = 1102527^2 + 67353^2 .

It is a super-3 number, since 3×1220102212338³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220102212337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33891728103 + ... + 33891728138.

Almost surely, 2^{1220102212338} is an apocalyptic number.

1220102212338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1220102212338 is an abundant number, since it is smaller than the sum of its proper divisors (1423452581100).

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

1220102212338 is a wasteful number, since it uses less digits than its factorization.

1220102212338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67783456249 (or 67783456246 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 1220102212338 its reverse (8332122010221), we get a palindrome (9552224222559).

The spelling of 1220102212338 in words is "one trillion, two hundred twenty billion, one hundred two million, two hundred twelve thousand, three hundred thirty-eight".