1213553223000 has 96 divisors (see below), whose sum is σ = 4101809924160. Its totient is φ = 323614190400.

The previous prime is 1213553222983. The next prime is 1213553223017. The reversal of 1213553223000 is 3223553121.

It is a happy number.

1213553223000 is a `hidden beast` number, since 1 + 2 + 1 + 35 + 5 + 322 + 300 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1213553222983) and next prime (1213553223017).

It is a super-2 number, since 2×1213553223000² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67410624 + ... + 67428623.

It is an arithmetic number, because the mean of its divisors is an integer number (42727186710).

Almost surely, 2^{1213553223000} is an apocalyptic number.

1213553223000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213553223000 is an abundant number, since it is smaller than the sum of its proper divisors (2888256701160).

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

1213553223000 is a wasteful number, since it uses less digits than its factorization.

1213553223000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134839274 (or 134839257 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 1213553223000 its reverse (3223553121), we get a palindrome (1216776776121).

The spelling of 1213553223000 in words is "one trillion, two hundred thirteen billion, five hundred fifty-three million, two hundred twenty-three thousand".