1212402452052 has 48 divisors (see below), whose sum is σ = 3086243177472. Its totient is φ = 367379462880.

The previous prime is 1212402452021. The next prime is 1212402452057. The reversal of 1212402452052 is 2502542042121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212402452057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3241903 + ... + 3596489.

It is an arithmetic number, because the mean of its divisors is an integer number (64296732864).

Almost surely, 2^{1212402452052} is an apocalyptic number.

1212402452052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212402452052 is an abundant number, since it is smaller than the sum of its proper divisors (1873840725420).

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

1212402452052 is a wasteful number, since it uses less digits than its factorization.

1212402452052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380508 (or 380506 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 1212402452052 its reverse (2502542042121), we get a palindrome (3714944494173).

The spelling of 1212402452052 in words is "one trillion, two hundred twelve billion, four hundred two million, four hundred fifty-two thousand, fifty-two".