1211210301100 has 18 divisors (see below), whose sum is σ = 2628326353604. Its totient is φ = 484484120400.

The previous prime is 1211210301013. The next prime is 1211210301149. The reversal of 1211210301100 is 11030121121.

It is a happy number.

It is a super-2 number, since 2×1211210301100² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6056051406 + ... + 6056051605.

Almost surely, 2^{1211210301100} is an apocalyptic number.

1211210301100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1211210301100 is an abundant number, since it is smaller than the sum of its proper divisors (1417116052504).

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

1211210301100 is a wasteful number, since it uses less digits than its factorization.

1211210301100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12112103025 (or 12112103018 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1211210301100 its reverse (11030121121), we get a palindrome (1222240422221).

The spelling of 1211210301100 in words is "one trillion, two hundred eleven billion, two hundred ten million, three hundred one thousand, one hundred".