212425322151440 has 40 divisors (see below), whose sum is σ = 494636058503448. Its totient is φ = 84841580989440.

The previous prime is 212425322151379. The next prime is 212425322151457. The reversal of 212425322151440 is 44151223524212.

It is a happy number.

212425322151440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9410243382544 + 203015078768896 = 3067612^2 + 14248336^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×212425322151440² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212425322151394 and 212425322151403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2008507277 + ... + 2008613036.

Almost surely, 2^{212425322151440} is an apocalyptic number.

212425322151440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212425322151440 is an abundant number, since it is smaller than the sum of its proper divisors (282210736352008).

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

212425322151440 is a wasteful number, since it uses less digits than its factorization.

212425322151440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4017120987 (or 4017120981 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 212425322151440 its reverse (44151223524212), we get a palindrome (256576545675652).

The spelling of 212425322151440 in words is "two hundred twelve trillion, four hundred twenty-five billion, three hundred twenty-two million, one hundred fifty-one thousand, four hundred forty".