101121211012 has 12 divisors (see below), whose sum is σ = 177027947740. Its totient is φ = 50541797376.

The previous prime is 101121210997. The next prime is 101121211033. The reversal of 101121211012 is 210112121101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 49522271296 + 51598939716 = 222536^2 + 227154^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101121210983 and 101121211001.

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, 4689933 + ... + 4711444.

Almost surely, 2^101121211012 is an apocalyptic number.

It is an amenable number.

101121211012 is a deficient number, since it is larger than the sum of its proper divisors (75906736728).

101121211012 is a wasteful number, since it uses less digits than its factorization.

101121211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9404070 (or 9404068 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101121211012 its reverse (210112121101), we get a palindrome (311233332113).

It can be divided in two parts, 10112121101 and 2, that multiplied together give a palindrome (20224242202).

The spelling of 101121211012 in words is "one hundred one billion, one hundred twenty-one million, two hundred eleven thousand, twelve".