61200029212 has 36 divisors (see below), whose sum is σ = 124628486304. Its totient is φ = 26219592000.

The previous prime is 61200029203. The next prime is 61200029213. The reversal of 61200029212 is 21292000216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61200029213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 536173 + ... + 640219.

Almost surely, 2^61200029212 is an apocalyptic number.

It is an amenable number.

61200029212 is an abundant number, since it is smaller than the sum of its proper divisors (63428457092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61200029212 is a wasteful number, since it uses less digits than its factorization.

61200029212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107066 (or 107057 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 61200029212 its reverse (21292000216), we get a palindrome (82492029428).

The spelling of 61200029212 in words is "sixty-one billion, two hundred million, twenty-nine thousand, two hundred twelve".