1213552266300 has 432 divisors, whose sum is σ = 4399282427904. Its totient is φ = 277007040000.

The previous prime is 1213552266247. The next prime is 1213552266319. The reversal of 1213552266300 is 36622553121.

1213552266300 is a `hidden beast` number, since 1 + 2 + 13 + 5 + 5 + 2 + 2 + 6 + 630 + 0 = 666.

It is a super-2 number, since 2×1213552266300² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 11301865 + ... + 11408735.

Almost surely, 2^{1213552266300} is an apocalyptic number.

1213552266300 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 1213552266300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2199641213952).

1213552266300 is an abundant number, since it is smaller than the sum of its proper divisors (3185730161604).

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

1213552266300 is a wasteful number, since it uses less digits than its factorization.

1213552266300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106970 (or 106960 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 1213552266300 in words is "one trillion, two hundred thirteen billion, five hundred fifty-two million, two hundred sixty-six thousand, three hundred".