1220201012 has 12 divisors (see below), whose sum is σ = 2135639520. Its totient is φ = 610018296.

The previous prime is 1220200997. The next prime is 1220201023. The reversal of 1220201012 is 2101020221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220200984 and 1220201002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23183 + ... + 54569.

It is an arithmetic number, because the mean of its divisors is an integer number (177969960).

Almost surely, 2^1220201012 is an apocalyptic number.

It is an amenable number.

1220201012 is a deficient number, since it is larger than the sum of its proper divisors (915438508).

1220201012 is a wasteful number, since it uses less digits than its factorization.

1220201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41110 (or 41108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1220201012 is about 34931.3757530390. The cubic root of 1220201012 is about 1068.5884119802.

Adding to 1220201012 its reverse (2101020221), we get a palindrome (3321221233).

The spelling of 1220201012 in words is "one billion, two hundred twenty million, two hundred one thousand, twelve".