1211002211210 has 64 divisors (see below), whose sum is σ = 2391993773568. Its totient is φ = 437774400000.

The previous prime is 1211002211207. The next prime is 1211002211267. The reversal of 1211002211210 is 121122001121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13276760 + ... + 13367660.

It is an arithmetic number, because the mean of its divisors is an integer number (37374902712).

Almost surely, 2^{1211002211210} is an apocalyptic number.

1211002211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211002211210 is a deficient number, since it is larger than the sum of its proper divisors (1180991562358).

1211002211210 is a wasteful number, since it uses less digits than its factorization.

1211002211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91631.

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

Adding to 1211002211210 its reverse (121122001121), we get a palindrome (1332124212331).

The spelling of 1211002211210 in words is "one trillion, two hundred eleven billion, two million, two hundred eleven thousand, two hundred ten".