212454025402 has 16 divisors (see below), whose sum is σ = 322046977824. Its totient is φ = 105106410000.

The previous prime is 212454025393. The next prime is 212454025403. The reversal of 212454025402 is 204520454212.

It is a super-2 number, since 2×212454025402² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212454025403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34224 + ... + 652747.

It is an arithmetic number, because the mean of its divisors is an integer number (20127936114).

Almost surely, 2^212454025402 is an apocalyptic number.

212454025402 is a deficient number, since it is larger than the sum of its proper divisors (109592952422).

212454025402 is a wasteful number, since it uses less digits than its factorization.

212454025402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688605.

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 212454025402 its reverse (204520454212), we get a palindrome (416974479614).

The spelling of 212454025402 in words is "two hundred twelve billion, four hundred fifty-four million, twenty-five thousand, four hundred two".