1361212222300 has 144 divisors (see below), whose sum is σ = 3523896456192. Its totient is φ = 446243212800.

The previous prime is 1361212222273. The next prime is 1361212222313. The reversal of 1361212222300 is 32222121631.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47528985 + ... + 47557615.

It is an arithmetic number, because the mean of its divisors is an integer number (24471503168).

Almost surely, 2^{1361212222300} is an apocalyptic number.

1361212222300 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 1361212222300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1761948228096).

1361212222300 is an abundant number, since it is smaller than the sum of its proper divisors (2162684233892).

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

1361212222300 is a wasteful number, since it uses less digits than its factorization.

1361212222300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31628 (or 31621 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1361212222300 its reverse (32222121631), we get a palindrome (1393434343931).

The spelling of 1361212222300 in words is "one trillion, three hundred sixty-one billion, two hundred twelve million, two hundred twenty-two thousand, three hundred".