1010211202121 has 4 divisors (see below), whose sum is σ = 1102048584144. Its totient is φ = 918373820100.

The previous prime is 1010211202081. The next prime is 1010211202127. The reversal of 1010211202121 is 1212021120101.

1010211202121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-1010211202121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1010211202096 and 1010211202105.

It is not an unprimeable number, because it can be changed into a prime (1010211202127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45918690995 + ... + 45918691016.

It is an arithmetic number, because the mean of its divisors is an integer number (275512146036).

Almost surely, 2^{1010211202121} is an apocalyptic number.

1010211202121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1010211202121 is a deficient number, since it is larger than the sum of its proper divisors (91837382023).

1010211202121 is an equidigital number, since it uses as much as digits as its factorization.

1010211202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91837382022.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1010211202121 its reverse (1212021120101), we get a palindrome (2222232322222).

The spelling of 1010211202121 in words is "one trillion, ten billion, two hundred eleven million, two hundred two thousand, one hundred twenty-one".