1201220212 has 12 divisors (see below), whose sum is σ = 2102411556. Its totient is φ = 600531200.

The previous prime is 1201220203. The next prime is 1201220231. The reversal of 1201220212 is 2120221021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 556771216 + 644448996 = 23596^2 + 25386^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1201220192 and 1201220201.

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, 26628 + ... + 55780.

It is an arithmetic number, because the mean of its divisors is an integer number (175200963).

Almost surely, 2^1201220212 is an apocalyptic number.

It is an amenable number.

1201220212 is a deficient number, since it is larger than the sum of its proper divisors (901191344).

1201220212 is a wasteful number, since it uses less digits than its factorization.

1201220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39458 (or 39456 counting only the distinct ones).

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

The square root of 1201220212 is about 34658.6239195961. The cubic root of 1201220212 is about 1063.0186329279.

Adding to 1201220212 its reverse (2120221021), we get a palindrome (3321441233).

The spelling of 1201220212 in words is "one billion, two hundred one million, two hundred twenty thousand, two hundred twelve".