1254211420000 has 240 divisors, whose sum is σ = 3846921990912. Its totient is φ = 390922560000.

The previous prime is 1254211419961. The next prime is 1254211420003. The reversal of 1254211420000 is 241124521.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254211420003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1132789 + ... + 1947211.

Almost surely, 2^{1254211420000} is an apocalyptic number.

1254211420000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1254211420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1923460995456).

1254211420000 is an abundant number, since it is smaller than the sum of its proper divisors (2592710570912).

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

1254211420000 is an equidigital number, since it uses as much as digits as its factorization.

1254211420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814471 (or 814448 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 1254211420000 its reverse (241124521), we get a palindrome (1254452544521).

The spelling of 1254211420000 in words is "one trillion, two hundred fifty-four billion, two hundred eleven million, four hundred twenty thousand".