1220101001012 has 24 divisors (see below), whose sum is σ = 2226055287456. Its totient is φ = 584620571808.

The previous prime is 1220101001003. The next prime is 1220101001083. The reversal of 1220101001012 is 2101001010221.

It is a junction number, because it is equal to n+sod(n) for n = 1220101000984 and 1220101001002.

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, 66911738 + ... + 66929969.

It is an arithmetic number, because the mean of its divisors is an integer number (92752303644).

Almost surely, 2^{1220101001012} is an apocalyptic number.

It is an amenable number.

1220101001012 is a deficient number, since it is larger than the sum of its proper divisors (1005954286444).

1220101001012 is a wasteful number, since it uses less digits than its factorization.

1220101001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133841807 (or 133841805 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1220101001012 its reverse (2101001010221), we get a palindrome (3321102011233).

The spelling of 1220101001012 in words is "one trillion, two hundred twenty billion, one hundred one million, one thousand, twelve".