101001120212121 has 32 divisors (see below), whose sum is σ = 142306205129088. Its totient is φ = 63637113093120.

The previous prime is 101001120212107. The next prime is 101001120212129. The reversal of 101001120212121 is 121212021100101.

It is a happy number.

It is not a de Polignac number, because 101001120212121 - 2¹¹ = 101001120210073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101001120212121.

It is not an unprimeable number, because it can be changed into a prime (101001120212129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57591696 + ... + 59319521.

It is an arithmetic number, because the mean of its divisors is an integer number (4447068910284).

Almost surely, 2^{101001120212121} is an apocalyptic number.

It is an amenable number.

101001120212121 is a deficient number, since it is larger than the sum of its proper divisors (41305084916967).

101001120212121 is a wasteful number, since it uses less digits than its factorization.

101001120212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116911481.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101001120212121 its reverse (121212021100101), we get a palindrome (222213141312222).

The spelling of 101001120212121 in words is "one hundred one trillion, one billion, one hundred twenty million, two hundred twelve thousand, one hundred twenty-one".