131222243013400 has 192 divisors, whose sum is σ = 380382433966080. Its totient is φ = 40899541785600.

The previous prime is 131222243013343. The next prime is 131222243013401. The reversal of 131222243013400 is 4310342222131.

It is a super-2 number, since 2×131222243013400² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131222243013401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1210740012 + ... + 1210848388.

It is an arithmetic number, because the mean of its divisors is an integer number (1981158510240).

Almost surely, 2^{131222243013400} is an apocalyptic number.

131222243013400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131222243013400 is an abundant number, since it is smaller than the sum of its proper divisors (249160190952680).

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

131222243013400 is a wasteful number, since it uses less digits than its factorization.

131222243013400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187034 (or 187025 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 131222243013400 its reverse (4310342222131), we get a palindrome (135532585235531).

The spelling of 131222243013400 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, two hundred forty-three million, thirteen thousand, four hundred".