1212342402 has 16 divisors (see below), whose sum is σ = 2427357312. Its totient is φ = 403668720.

The previous prime is 1212342401. The next prime is 1212342409. The reversal of 1212342402 is 2042432121.

It is a super-4 number, since 4×1212342402⁴ (a number of 37 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212342401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105433 + ... + 116364.

It is an arithmetic number, because the mean of its divisors is an integer number (151709832).

Almost surely, 2^1212342402 is an apocalyptic number.

1212342402 is an abundant number, since it is smaller than the sum of its proper divisors (1215014910).

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

1212342402 is a wasteful number, since it uses less digits than its factorization.

1212342402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222713.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1212342402 is about 34818.7076440238. The cubic root of 1212342402 is about 1066.2894157894.

Adding to 1212342402 its reverse (2042432121), we get a palindrome (3254774523).

The spelling of 1212342402 in words is "one billion, two hundred twelve million, three hundred forty-two thousand, four hundred two".