1212014213421 has 32 divisors (see below), whose sum is σ = 1915577364480. Its totient is φ = 673445145600.

The previous prime is 1212014213353. The next prime is 1212014213437. The reversal of 1212014213421 is 1243124102121.

It is not a de Polignac number, because 1212014213421 - 2⁹ = 1212014212909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212014213391 and 1212014213400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212014212421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31158580 + ... + 31197453.

It is an arithmetic number, because the mean of its divisors is an integer number (59861792640).

Almost surely, 2^{1212014213421} is an apocalyptic number.

1212014213421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212014213421 is a deficient number, since it is larger than the sum of its proper divisors (703563151059).

1212014213421 is a wasteful number, since it uses less digits than its factorization.

1212014213421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62356097.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1212014213421 its reverse (1243124102121), we get a palindrome (2455138315542).

The spelling of 1212014213421 in words is "one trillion, two hundred twelve billion, fourteen million, two hundred thirteen thousand, four hundred twenty-one".