1011201210101 has 4 divisors (see below), whose sum is σ = 1012079752704. Its totient is φ = 1010322667500.

The previous prime is 1011201210031. The next prime is 1011201210121. The reversal of 1011201210101 is 1010121021101.

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 cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011201210101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011201210121) 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, 439269575 + ... + 439271876.

It is an arithmetic number, because the mean of its divisors is an integer number (253019938176).

Almost surely, 2^{1011201210101} is an apocalyptic number.

It is an amenable number.

1011201210101 is a deficient number, since it is larger than the sum of its proper divisors (878542603).

1011201210101 is an equidigital number, since it uses as much as digits as its factorization.

1011201210101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878542602.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1011201210101 its reverse (1010121021101), we get a palindrome (2021322231202).

The spelling of 1011201210101 in words is "one trillion, eleven billion, two hundred one million, two hundred ten thousand, one hundred one".