1206120712428 has 36 divisors (see below), whose sum is σ = 3091746058128. Its totient is φ = 396377698080.

The previous prime is 1206120712411. The next prime is 1206120712429. The reversal of 1206120712428 is 8242170216021.

1206120712428 is a `hidden beast` number, since 1 + 2 + 0 + 612 + 0 + 7 + 12 + 4 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1206120712392 and 1206120712401.

It is not an unprimeable number, because it can be changed into a prime (1206120712429) 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, 235936551 + ... + 235941662.

It is an arithmetic number, because the mean of its divisors is an integer number (85881834948).

Almost surely, 2^{1206120712428} is an apocalyptic number.

1206120712428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1206120712428 is an abundant number, since it is smaller than the sum of its proper divisors (1885625345700).

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

1206120712428 is a wasteful number, since it uses less digits than its factorization.

1206120712428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471878294 (or 471878289 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

Adding to 1206120712428 its reverse (8242170216021), we get a palindrome (9448290928449).

The spelling of 1206120712428 in words is "one trillion, two hundred six billion, one hundred twenty million, seven hundred twelve thousand, four hundred twenty-eight".