1211201102210 has 16 divisors (see below), whose sum is σ = 2378358528192. Its totient is φ = 440436764400.

The previous prime is 1211201102179. The next prime is 1211201102249. The reversal of 1211201102210 is 122011021121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5505459446 + ... + 5505459665.

It is an arithmetic number, because the mean of its divisors is an integer number (148647408012).

Almost surely, 2^{1211201102210} is an apocalyptic number.

1211201102210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211201102210 is a deficient number, since it is larger than the sum of its proper divisors (1167157425982).

1211201102210 is a wasteful number, since it uses less digits than its factorization.

1211201102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11010919129.

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

Adding to 1211201102210 its reverse (122011021121), we get a palindrome (1333212123331).

The spelling of 1211201102210 in words is "one trillion, two hundred eleven billion, two hundred one million, one hundred two thousand, two hundred ten".