1211201100022 has 8 divisors (see below), whose sum is σ = 1816815971376. Its totient is φ = 605595776232.

The previous prime is 1211201100019. The next prime is 1211201100077. The reversal of 1211201100022 is 2200011021121.

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 = 1211201099975 and 1211201100011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2060833 + ... + 2582524.

It is an arithmetic number, because the mean of its divisors is an integer number (227101996422).

Almost surely, 2^{1211201100022} is an apocalyptic number.

1211201100022 is a deficient number, since it is larger than the sum of its proper divisors (605614871354).

1211201100022 is a wasteful number, since it uses less digits than its factorization.

1211201100022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773782.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1211201100022 its reverse (2200011021121), we get a palindrome (3411212121143).

The spelling of 1211201100022 in words is "one trillion, two hundred eleven billion, two hundred one million, one hundred thousand, twenty-two".