1211212112034 has 16 divisors (see below), whose sum is σ = 2422435051872. Its totient is φ = 403735566048.

The previous prime is 1211212112027. The next prime is 1211212112053. The reversal of 1211212112034 is 4302112121121.

It is a self number, because there is not a number n which added to its sum of digits gives 1211212112034.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2215357 + ... + 2707439.

It is an arithmetic number, because the mean of its divisors is an integer number (151402190742).

Almost surely, 2^{1211212112034} is an apocalyptic number.

1211212112034 is an abundant number, since it is smaller than the sum of its proper divisors (1211222939838).

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

1211212112034 is a wasteful number, since it uses less digits than its factorization.

1211212112034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902321.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 1211212112034 its reverse (4302112121121), we get a palindrome (5513324233155).

The spelling of 1211212112034 in words is "one trillion, two hundred eleven billion, two hundred twelve million, one hundred twelve thousand, thirty-four".