2111212001213 has 16 divisors (see below), whose sum is σ = 2449187328000. Its totient is φ = 1782439422192.

The previous prime is 2111212001209. The next prime is 2111212001251. The reversal of 2111212001213 is 3121002121112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2111212001213 - 2² = 2111212001209 is a prime.

It is a super-2 number, since 2×2111212001213² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2111212001191 and 2111212001200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111212001203) 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, 4324073 + ... + 4787486.

It is an arithmetic number, because the mean of its divisors is an integer number (153074208000).

Almost surely, 2^{2111212001213} is an apocalyptic number.

It is an amenable number.

2111212001213 is a deficient number, since it is larger than the sum of its proper divisors (337975326787).

2111212001213 is an equidigital number, since it uses as much as digits as its factorization.

2111212001213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9112064.

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

Adding to 2111212001213 its reverse (3121002121112), we get a palindrome (5232214122325).

The spelling of 2111212001213 in words is "two trillion, one hundred eleven billion, two hundred twelve million, one thousand, two hundred thirteen".