6461222012 has 24 divisors (see below), whose sum is σ = 12940114656. Its totient is φ = 2765308608.

The previous prime is 6461221981. The next prime is 6461222039. The reversal of 6461222012 is 2102221646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136883 + ... + 177930.

It is an arithmetic number, because the mean of its divisors is an integer number (539171444).

Almost surely, 2^6461222012 is an apocalyptic number.

It is an amenable number.

6461222012 is an abundant number, since it is smaller than the sum of its proper divisors (6478892644).

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

6461222012 is a wasteful number, since it uses less digits than its factorization.

6461222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315557 (or 315555 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 6461222012 is about 80381.7268538068. The cubic root of 6461222012 is about 1862.5369101704.

Adding to 6461222012 its reverse (2102221646), we get a palindrome (8563443658).

The spelling of 6461222012 in words is "six billion, four hundred sixty-one million, two hundred twenty-two thousand, twelve".