1220400214 has 32 divisors (see below), whose sum is σ = 2109888000. Its totient is φ = 524190240.

The previous prime is 1220400187. The next prime is 1220400227. The reversal of 1220400214 is 4120040221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9637 + ... + 50335.

It is an arithmetic number, because the mean of its divisors is an integer number (65934000).

Almost surely, 2^1220400214 is an apocalyptic number.

1220400214 is a deficient number, since it is larger than the sum of its proper divisors (889487786).

1220400214 is a wasteful number, since it uses less digits than its factorization.

1220400214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40788.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1220400214 is about 34934.2269701220. The cubic root of 1220400214 is about 1068.6465590571.

Adding to 1220400214 its reverse (4120040221), we get a palindrome (5340440435).

The spelling of 1220400214 in words is "one billion, two hundred twenty million, four hundred thousand, two hundred fourteen".