1220021302 has 8 divisors (see below), whose sum is σ = 1830484656. Its totient is φ = 609859752.

The previous prime is 1220021281. The next prime is 1220021311. The reversal of 1220021302 is 2031200221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65058 + ... + 81685.

It is an arithmetic number, because the mean of its divisors is an integer number (228810582).

Almost surely, 2^1220021302 is an apocalyptic number.

1220021302 is a deficient number, since it is larger than the sum of its proper divisors (610463354).

1220021302 is a wasteful number, since it uses less digits than its factorization.

1220021302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150902.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1220021302 is about 34928.8033290578. The cubic root of 1220021302 is about 1068.5359491893.

Adding to 1220021302 its reverse (2031200221), we get a palindrome (3251221523).

The spelling of 1220021302 in words is "one billion, two hundred twenty million, twenty-one thousand, three hundred two".