1212420034 has 12 divisors (see below), whose sum is σ = 2115549414. Its totient is φ = 519608544.

The previous prime is 1212420019. The next prime is 1212420047. The reversal of 1212420034 is 4300242121.

It can be written as a sum of positive squares in only one way, i.e., 1030089025 + 182331009 = 32095^2 + 13503^2 .

It is a super-2 number, since 2×1212420034² = 2939924677689122312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212419993 and 1212420020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6185719 + ... + 6185914.

Almost surely, 2^1212420034 is an apocalyptic number.

1212420034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1212420034 is a deficient number, since it is larger than the sum of its proper divisors (903129380).

1212420034 is a wasteful number, since it uses less digits than its factorization.

1212420034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12371649 (or 12371642 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1212420034 is about 34819.8224291854. The cubic root of 1212420034 is about 1066.3121751499.

Adding to 1212420034 its reverse (4300242121), we get a palindrome (5512662155).

The spelling of 1212420034 in words is "one billion, two hundred twelve million, four hundred twenty thousand, thirty-four".