1211222110010 has 64 divisors (see below), whose sum is σ = 2511710208000. Its totient is φ = 416218735680.

The previous prime is 1211222110001. The next prime is 1211222110013. The reversal of 1211222110010 is 100112221121.

It is not an unprimeable number, because it can be changed into a prime (1211222110013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2674010 + ... + 3093989.

It is an arithmetic number, because the mean of its divisors is an integer number (39245472000).

Almost surely, 2^{1211222110010} is an apocalyptic number.

1211222110010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211222110010 is an abundant number, since it is smaller than the sum of its proper divisors (1300488097990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211222110010 is a wasteful number, since it uses less digits than its factorization.

1211222110010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5768123.

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

Adding to 1211222110010 its reverse (100112221121), we get a palindrome (1311334331131).

It can be divided in two parts, 12112 and 22110010, that added together give a palindrome (22122122).

The spelling of 1211222110010 in words is "one trillion, two hundred eleven billion, two hundred twenty-two million, one hundred ten thousand, ten".