400214400212 has 24 divisors (see below), whose sum is σ = 774512058432. Its totient is φ = 179423640000.

The previous prime is 400214400193. The next prime is 400214400217. The reversal of 400214400212 is 212004412004.

It is a super-2 number, since 2×400214400212² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400214400217) 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, 62296664 + ... + 62303087.

It is an arithmetic number, because the mean of its divisors is an integer number (32271335768).

Almost surely, 2^400214400212 is an apocalyptic number.

It is an amenable number.

400214400212 is a deficient number, since it is larger than the sum of its proper divisors (374297658220).

400214400212 is a wasteful number, since it uses less digits than its factorization.

400214400212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124599839 (or 124599837 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 400214400212 its reverse (212004412004), we get a palindrome (612218812216).

The spelling of 400214400212 in words is "four hundred billion, two hundred fourteen million, four hundred thousand, two hundred twelve".