1220012101012 has 24 divisors (see below), whose sum is σ = 2173854795840. Its totient is φ = 598969282560.

The previous prime is 1220012100973. The next prime is 1220012101037. The reversal of 1220012101012 is 2101012100221.

It is a junction number, because it is equal to n+sod(n) for n = 1220012100983 and 1220012101001.

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, 7235437 + ... + 7402132.

It is an arithmetic number, because the mean of its divisors is an integer number (90577283160).

Almost surely, 2^{1220012101012} is an apocalyptic number.

It is an amenable number.

1220012101012 is a deficient number, since it is larger than the sum of its proper divisors (953842694828).

1220012101012 is a wasteful number, since it uses less digits than its factorization.

1220012101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14637951 (or 14637949 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1220012101012 its reverse (2101012100221), we get a palindrome (3321024201233).

The spelling of 1220012101012 in words is "one trillion, two hundred twenty billion, twelve million, one hundred one thousand, twelve".