1200427102 has 32 divisors (see below), whose sum is σ = 2135992320. Its totient is φ = 495059040.

The previous prime is 1200427099. The next prime is 1200427121. The reversal of 1200427102 is 2017240021.

It is a happy number.

It is a super-2 number, since 2×1200427102² = 2882050454432236808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1200427102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119827 + ... + 129457.

It is an arithmetic number, because the mean of its divisors is an integer number (66749760).

Almost surely, 2^1200427102 is an apocalyptic number.

1200427102 is a deficient number, since it is larger than the sum of its proper divisors (935565218).

1200427102 is a wasteful number, since it uses less digits than its factorization.

1200427102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9976.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 1200427102 is about 34647.1802893107. The cubic root of 1200427102 is about 1062.7846274506.

Adding to 1200427102 its reverse (2017240021), we get a palindrome (3217667123).

The spelling of 1200427102 in words is "one billion, two hundred million, four hundred twenty-seven thousand, one hundred two".