1011122011212 has 48 divisors (see below), whose sum is σ = 2361216571392. Its totient is φ = 336764810880.

The previous prime is 1011122011199. The next prime is 1011122011217. The reversal of 1011122011212 is 2121102211101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1011122011191 and 1011122011200.

It is not an unprimeable number, because it can be changed into a prime (1011122011217) 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, 121656537 + ... + 121664847.

It is an arithmetic number, because the mean of its divisors is an integer number (49192011904).

Almost surely, 2^{1011122011212} is an apocalyptic number.

1011122011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011122011212 is an abundant number, since it is smaller than the sum of its proper divisors (1350094560180).

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

1011122011212 is a wasteful number, since it uses less digits than its factorization.

1011122011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15398 (or 15396 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1011122011212 its reverse (2121102211101), we get a palindrome (3132224222313).

The spelling of 1011122011212 in words is "one trillion, eleven billion, one hundred twenty-two million, eleven thousand, two hundred twelve".