1002211220001 has 16 divisors (see below), whose sum is σ = 1350192579008. Its totient is φ = 661186713600.

The previous prime is 1002211219981. The next prime is 1002211220011. The reversal of 1002211220001 is 1000221122001.

It is not a de Polignac number, because 1002211220001 - 2⁵ = 1002211219969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002211220011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2836566 + ... + 3170256.

It is an arithmetic number, because the mean of its divisors is an integer number (84387036188).

Almost surely, 2^{1002211220001} is an apocalyptic number.

It is an amenable number.

1002211220001 is a deficient number, since it is larger than the sum of its proper divisors (347981359007).

1002211220001 is a wasteful number, since it uses less digits than its factorization.

1002211220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344112.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1002211220001 its reverse (1000221122001), we get a palindrome (2002432342002).

It can be divided in two parts, 100221122000 and 1, that added together give a palindrome (100221122001).

The spelling of 1002211220001 in words is "one trillion, two billion, two hundred eleven million, two hundred twenty thousand, one".