1220211022002 has 128 divisors (see below), whose sum is σ = 2932429824000. Its totient is φ = 331117307136.

The previous prime is 1220211021971. The next prime is 1220211022039. The reversal of 1220211022002 is 2002201120221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 59806999 + ... + 59827397.

It is an arithmetic number, because the mean of its divisors is an integer number (22909608000).

Almost surely, 2^{1220211022002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220211022002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1466214912000).

1220211022002 is an abundant number, since it is smaller than the sum of its proper divisors (1712218801998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220211022002 is a wasteful number, since it uses less digits than its factorization.

1220211022002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21240.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1220211022002 its reverse (2002201120221), we get a palindrome (3222412142223).

The spelling of 1220211022002 in words is "one trillion, two hundred twenty billion, two hundred eleven million, twenty-two thousand, two".