1220201222012 has 24 divisors (see below), whose sum is σ = 2345466883200. Its totient is φ = 552860049456.

The previous prime is 1220201222011. The next prime is 1220201222027. The reversal of 1220201222012 is 2102221020221.

It is a happy number.

It is a super-2 number, since 2×1220201222012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220201222011) 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, 349026062 + ... + 349029557.

It is an arithmetic number, because the mean of its divisors is an integer number (97727786800).

Almost surely, 2^{1220201222012} is an apocalyptic number.

It is an amenable number.

1220201222012 is a deficient number, since it is larger than the sum of its proper divisors (1125265661188).

1220201222012 is a wasteful number, since it uses less digits than its factorization.

1220201222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698055665 (or 698055663 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1220201222012 its reverse (2102221020221), we get a palindrome (3322422242233).

The spelling of 1220201222012 in words is "one trillion, two hundred twenty billion, two hundred one million, two hundred twenty-two thousand, twelve".