1221000122702 has 16 divisors (see below), whose sum is σ = 1845732474432. Its totient is φ = 605772582240.

The previous prime is 1221000122701. The next prime is 1221000122753. The reversal of 1221000122702 is 2072210001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221000122701) 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, 4007174 + ... + 4301097.

It is an arithmetic number, because the mean of its divisors is an integer number (115358279652).

Almost surely, 2^{1221000122702} is an apocalyptic number.

1221000122702 is a deficient number, since it is larger than the sum of its proper divisors (624732351730).

1221000122702 is a wasteful number, since it uses less digits than its factorization.

1221000122702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8308843.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 1221000122702 its reverse (2072210001221), we get a palindrome (3293210123923).

The spelling of 1221000122702 in words is "one trillion, two hundred twenty-one billion, one hundred twenty-two thousand, seven hundred two".