1212010111211 has 8 divisors (see below), whose sum is σ = 1224224150304. Its totient is φ = 1199800267200.

The previous prime is 1212010111199. The next prime is 1212010111223. The reversal of 1212010111211 is 1121110102121.

It is an interprime number because it is at equal distance from previous prime (1212010111199) and next prime (1212010111223).

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-1212010111211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212010111231) 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, 466415 + ... + 1625288.

It is an arithmetic number, because the mean of its divisors is an integer number (153028018788).

Almost surely, 2^{1212010111211} is an apocalyptic number.

1212010111211 is a deficient number, since it is larger than the sum of its proper divisors (12214039093).

1212010111211 is a wasteful number, since it uses less digits than its factorization.

1212010111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097541.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1212010111211 its reverse (1121110102121), we get a palindrome (2333120213332).

The spelling of 1212010111211 in words is "one trillion, two hundred twelve billion, ten million, one hundred eleven thousand, two hundred eleven".