1521400214214 has 40 divisors (see below), whose sum is σ = 3409448735880. Its totient is φ = 507076088544.

The previous prime is 1521400214107. The next prime is 1521400214239. The reversal of 1521400214214 is 4124120041251.

1521400214214 is a `hidden beast` number, since 1 + 5 + 21 + 400 + 21 + 4 + 214 = 666.

It is a super-2 number, since 2×1521400214214² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 919282 + ... + 1971770.

It is an arithmetic number, because the mean of its divisors is an integer number (85236218397).

Almost surely, 2^{1521400214214} is an apocalyptic number.

1521400214214 is an abundant number, since it is smaller than the sum of its proper divisors (1888048521666).

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

1521400214214 is a wasteful number, since it uses less digits than its factorization.

1521400214214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061426 (or 1061417 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

Adding to 1521400214214 its reverse (4124120041251), we get a palindrome (5645520255465).

The spelling of 1521400214214 in words is "one trillion, five hundred twenty-one billion, four hundred million, two hundred fourteen thousand, two hundred fourteen".