1012111212212 has 24 divisors (see below), whose sum is σ = 1832309996160. Its totient is φ = 488594826720.

The previous prime is 1012111212197. The next prime is 1012111212221. The reversal of 1012111212212 is 2122121112101.

It is a congruent number.

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, 9233753 + ... + 9342719.

It is an arithmetic number, because the mean of its divisors is an integer number (76346249840).

Almost surely, 2^{1012111212212} is an apocalyptic number.

It is an amenable number.

1012111212212 is a deficient number, since it is larger than the sum of its proper divisors (820198783948).

1012111212212 is a wasteful number, since it uses less digits than its factorization.

1012111212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189071 (or 189069 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1012111212212 its reverse (2122121112101), we get a palindrome (3134232324313).

The spelling of 1012111212212 in words is "one trillion, twelve billion, one hundred eleven million, two hundred twelve thousand, two hundred twelve".