1201102222012 has 96 divisors (see below), whose sum is σ = 2680008984576. Its totient is φ = 457457457600.

The previous prime is 1201102222009. The next prime is 1201102222031. The reversal of 1201102222012 is 2102222011021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2481163 + ... + 2925469.

It is an arithmetic number, because the mean of its divisors is an integer number (27916760256).

Almost surely, 2^{1201102222012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201102222012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1340004492288).

1201102222012 is an abundant number, since it is smaller than the sum of its proper divisors (1478906762564).

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

1201102222012 is a wasteful number, since it uses less digits than its factorization.

1201102222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444527 (or 444525 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1201102222012 its reverse (2102222011021), we get a palindrome (3303324233033).

The spelling of 1201102222012 in words is "one trillion, two hundred one billion, one hundred two million, two hundred twenty-two thousand, twelve".