101020212010111 has 4 divisors (see below), whose sum is σ = 101021230222192. Its totient is φ = 101019193798032.

The previous prime is 101020212010097. The next prime is 101020212010121. The reversal of 101020212010111 is 111010212020101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101020212010111 - 2³⁹ = 100470456196223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101020212010091 and 101020212010100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101020212010121) 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, 508957206 + ... + 509155651.

It is an arithmetic number, because the mean of its divisors is an integer number (25255307555548).

Almost surely, 2^{101020212010111} is an apocalyptic number.

101020212010111 is a deficient number, since it is larger than the sum of its proper divisors (1018212081).

101020212010111 is an equidigital number, since it uses as much as digits as its factorization.

101020212010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018212080.

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

Adding to 101020212010111 its reverse (111010212020101), we get a palindrome (212030424030212).

The spelling of 101020212010111 in words is "one hundred one trillion, twenty billion, two hundred twelve million, ten thousand, one hundred eleven".