1220120002 has 8 divisors (see below), whose sum is σ = 1831053312. Its totient is φ = 609768900.

The previous prime is 1220119993. The next prime is 1220120021. The reversal of 1220120002 is 2000210221.

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

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, 140274 + ... + 148717.

It is an arithmetic number, because the mean of its divisors is an integer number (228881664).

Almost surely, 2^1220120002 is an apocalyptic number.

1220120002 is a deficient number, since it is larger than the sum of its proper divisors (610933310).

1220120002 is a wasteful number, since it uses less digits than its factorization.

1220120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291104.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1220120002 is about 34930.2161745386. The cubic root of 1220120002 is about 1068.5647633458.

Adding to 1220120002 its reverse (2000210221), we get a palindrome (3220330223).

The spelling of 1220120002 in words is "one billion, two hundred twenty million, one hundred twenty thousand, two".