1201212311210 has 32 divisors (see below), whose sum is σ = 2279781072000. Its totient is φ = 454436274240.

The previous prime is 1201212311113. The next prime is 1201212311219. The reversal of 1201212311210 is 121132121021.

It is a happy number.

It is a super-2 number, since 2×1201212311210² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1201212311219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5163461 + ... + 5391080.

It is an arithmetic number, because the mean of its divisors is an integer number (71243158500).

Almost surely, 2^{1201212311210} is an apocalyptic number.

1201212311210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201212311210 is a deficient number, since it is larger than the sum of its proper divisors (1078568760790).

1201212311210 is a wasteful number, since it uses less digits than its factorization.

1201212311210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10555166.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1201212311210 its reverse (121132121021), we get a palindrome (1322344432231).

The spelling of 1201212311210 in words is "one trillion, two hundred one billion, two hundred twelve million, three hundred eleven thousand, two hundred ten".