1212101202011 has 8 divisors (see below), whose sum is σ = 1386564141024. Its totient is φ = 1037964669120.

The previous prime is 1212101202001. The next prime is 1212101202061. The reversal of 1212101202011 is 1102021012121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212101202011 is a prime.

It is a super-2 number, since 2×1212101202011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212101202001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81593570 + ... + 81608423.

It is an arithmetic number, because the mean of its divisors is an integer number (173320517628).

Almost surely, 2^{1212101202011} is an apocalyptic number.

1212101202011 is a deficient number, since it is larger than the sum of its proper divisors (174462939013).

1212101202011 is a wasteful number, since it uses less digits than its factorization.

1212101202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163203061.

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

Adding to 1212101202011 its reverse (1102021012121), we get a palindrome (2314122214132).

The spelling of 1212101202011 in words is "one trillion, two hundred twelve billion, one hundred one million, two hundred two thousand, eleven".