1210211012102 has 4 divisors (see below), whose sum is σ = 1815316518156. Its totient is φ = 605105506050.

The previous prime is 1210211012099. The next prime is 1210211012111. The reversal of 1210211012102 is 2012101120121.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1210211012102² (a number of 25 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 302552753024 + ... + 302552753027.

It is an arithmetic number, because the mean of its divisors is an integer number (453829129539).

Almost surely, 2^{1210211012102} is an apocalyptic number.

1210211012102 is a deficient number, since it is larger than the sum of its proper divisors (605105506054).

1210211012102 is an equidigital number, since it uses as much as digits as its factorization.

1210211012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605105506053.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1210211012102 its reverse (2012101120121), we get a palindrome (3222312132223).

The spelling of 1210211012102 in words is "one trillion, two hundred ten billion, two hundred eleven million, twelve thousand, one hundred two".