1220021014 has 12 divisors (see below), whose sum is σ = 1944013644. Its totient is φ = 574127264.

The previous prime is 1220021009. The next prime is 1220021029. The reversal of 1220021014 is 4101200221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220020985 and 1220021003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1054804 + ... + 1055959.

It is an arithmetic number, because the mean of its divisors is an integer number (162001137).

Almost surely, 2^1220021014 is an apocalyptic number.

1220021014 is a deficient number, since it is larger than the sum of its proper divisors (723992630).

1220021014 is a wasteful number, since it uses less digits than its factorization.

1220021014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110799 (or 2110782 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1220021014 is about 34928.7992063856. The cubic root of 1220021014 is about 1068.5358651092.

Adding to 1220021014 its reverse (4101200221), we get a palindrome (5321221235).

The spelling of 1220021014 in words is "one billion, two hundred twenty million, twenty-one thousand, fourteen".