12206421102 has 16 divisors (see below), whose sum is σ = 24428806272. Its totient is φ = 4066146360.

The previous prime is 12206421091. The next prime is 12206421113. The reversal of 12206421102 is 20112460221.

It is an interprime number because it is at equal distance from previous prime (12206421091) and next prime (12206421113).

It is a super-2 number, since 2×12206421102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655218 + ... + 673589.

It is an arithmetic number, because the mean of its divisors is an integer number (1526800392).

Almost surely, 2^12206421102 is an apocalyptic number.

12206421102 is an abundant number, since it is smaller than the sum of its proper divisors (12222385170).

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

12206421102 is a wasteful number, since it uses less digits than its factorization.

12206421102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330343.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12206421102 its reverse (20112460221), we get a palindrome (32318881323).

The spelling of 12206421102 in words is "twelve billion, two hundred six million, four hundred twenty-one thousand, one hundred two".