1211222002102 has 8 divisors (see below), whose sum is σ = 2076380575056. Its totient is φ = 519095143752.

The previous prime is 1211222002099. The next prime is 1211222002153. The reversal of 1211222002102 is 2012002221121.

It is a happy number.

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

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, 43257928633 + ... + 43257928660.

It is an arithmetic number, because the mean of its divisors is an integer number (259547571882).

Almost surely, 2^{1211222002102} is an apocalyptic number.

1211222002102 is a deficient number, since it is larger than the sum of its proper divisors (865158572954).

1211222002102 is an equidigital number, since it uses as much as digits as its factorization.

1211222002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86515857302.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1211222002102 its reverse (2012002221121), we get a palindrome (3223224223223).

The spelling of 1211222002102 in words is "one trillion, two hundred eleven billion, two hundred twenty-two million, two thousand, one hundred two".