1220454214 has 16 divisors (see below), whose sum is σ = 2131684128. Its totient is φ = 513182592.

The previous prime is 1220454211. The next prime is 1220454269. The reversal of 1220454214 is 4124540221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220454211) 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, 821667 + ... + 823150.

It is an arithmetic number, because the mean of its divisors is an integer number (133230258).

Almost surely, 2^1220454214 is an apocalyptic number.

1220454214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1220454214 is a deficient number, since it is larger than the sum of its proper divisors (911229914).

1220454214 is a wasteful number, since it uses less digits than its factorization.

1220454214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644879.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 1220454214 is about 34934.9998425648. Note that the first 3 decimals coincide. The cubic root of 1220454214 is about 1068.6623205706.

Adding to 1220454214 its reverse (4124540221), we get a palindrome (5344994435).

The spelling of 1220454214 in words is "one billion, two hundred twenty million, four hundred fifty-four thousand, two hundred fourteen".