1220000001002 has 16 divisors (see below), whose sum is σ = 1889061191424. Its totient is φ = 590313540000.

The previous prime is 1220000000981. The next prime is 1220000001007. The reversal of 1220000001002 is 2001000000221.

It is not an unprimeable number, because it can be changed into a prime (1220000001007) 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, 5827502 + ... + 6033222.

It is an arithmetic number, because the mean of its divisors is an integer number (118066324464).

Almost surely, 2^{1220000001002} is an apocalyptic number.

1220000001002 is a deficient number, since it is larger than the sum of its proper divisors (669061190422).

1220000001002 is a wasteful number, since it uses less digits than its factorization.

1220000001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301405.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 1220000001002 its reverse (2001000000221), we get a palindrome (3221000001223).

The spelling of 1220000001002 in words is "one trillion, two hundred twenty billion, one thousand, two".