205101134012 has 6 divisors (see below), whose sum is σ = 358926984528. Its totient is φ = 102550567004.

The previous prime is 205101133981. The next prime is 205101134027. The reversal of 205101134012 is 210431101502.

It is a super-2 number, since 2×205101134012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25637641748 + ... + 25637641755.

It is an arithmetic number, because the mean of its divisors is an integer number (59821164088).

Almost surely, 2^205101134012 is an apocalyptic number.

It is an amenable number.

205101134012 is a deficient number, since it is larger than the sum of its proper divisors (153825850516).

205101134012 is a wasteful number, since it uses less digits than its factorization.

205101134012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51275283507 (or 51275283505 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 205101134012 its reverse (210431101502), we get a palindrome (415532235514).

The spelling of 205101134012 in words is "two hundred five billion, one hundred one million, one hundred thirty-four thousand, twelve".