1211002100222 has 8 divisors (see below), whose sum is σ = 1816524163272. Its totient is φ = 605494045800.

The previous prime is 1211002100213. The next prime is 1211002100279. The reversal of 1211002100222 is 2220012001121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1211002100197 and 1211002100206.

It is a congruent number.

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, 3283304 + ... + 3633467.

It is an arithmetic number, because the mean of its divisors is an integer number (227065520409).

Almost surely, 2^{1211002100222} is an apocalyptic number.

1211002100222 is a deficient number, since it is larger than the sum of its proper divisors (605522063050).

1211002100222 is an equidigital number, since it uses as much as digits as its factorization.

1211002100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7004314.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1211002100222 its reverse (2220012001121), we get a palindrome (3431014101343).

The spelling of 1211002100222 in words is "one trillion, two hundred eleven billion, two million, one hundred thousand, two hundred twenty-two".