1000220201212 has 12 divisors (see below), whose sum is σ = 1753090743600. Its totient is φ = 499337131616.

The previous prime is 1000220201137. The next prime is 1000220201231. The reversal of 1000220201212 is 2121020220001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1000220201192 and 1000220201201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193239337 + ... + 193244512.

It is an arithmetic number, because the mean of its divisors is an integer number (146090895300).

Almost surely, 2^{1000220201212} is an apocalyptic number.

It is an amenable number.

1000220201212 is a deficient number, since it is larger than the sum of its proper divisors (752870542388).

1000220201212 is a wasteful number, since it uses less digits than its factorization.

1000220201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386484500 (or 386484498 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1000220201212 its reverse (2121020220001), we get a palindrome (3121240421213).

The spelling of 1000220201212 in words is "one trillion, two hundred twenty million, two hundred one thousand, two hundred twelve".