1221022030 has 8 divisors (see below), whose sum is σ = 2197839672. Its totient is φ = 488408808.

The previous prime is 1221022021. The next prime is 1221022031. The reversal of 1221022030 is 302201221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1221022030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221022031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61051092 + ... + 61051111.

It is an arithmetic number, because the mean of its divisors is an integer number (274729959).

Almost surely, 2^1221022030 is an apocalyptic number.

1221022030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221022030 is a deficient number, since it is larger than the sum of its proper divisors (976817642).

1221022030 is a wasteful number, since it uses less digits than its factorization.

1221022030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122102210.

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

The square root of 1221022030 is about 34943.1256472571. The cubic root of 1221022030 is about 1068.8280264956.

Adding to 1221022030 its reverse (302201221), we get a palindrome (1523223251).

The spelling of 1221022030 in words is "one billion, two hundred twenty-one million, twenty-two thousand, thirty".