1202021012 has 12 divisors (see below), whose sum is σ = 2118892020. Its totient is φ = 596623296.

The previous prime is 1202021003. The next prime is 1202021027. The reversal of 1202021012 is 2101202021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 593214736 + 608806276 = 24356^2 + 24674^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1202020984 and 1202021002.

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, 1096187 + ... + 1097282.

It is an arithmetic number, because the mean of its divisors is an integer number (176574335).

Almost surely, 2^1202021012 is an apocalyptic number.

It is an amenable number.

1202021012 is a deficient number, since it is larger than the sum of its proper divisors (916871008).

1202021012 is a wasteful number, since it uses less digits than its factorization.

1202021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193610 (or 2193608 counting only the distinct ones).

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

The square root of 1202021012 is about 34670.1746750719. The cubic root of 1202021012 is about 1063.2548028425.

Adding to 1202021012 its reverse (2101202021), we get a palindrome (3303223033).

The spelling of 1202021012 in words is "one billion, two hundred two million, twenty-one thousand, twelve".