101021212210111 has 4 divisors (see below), whose sum is σ = 101030990674824. Its totient is φ = 101011433745400.

The previous prime is 101021212210091. The next prime is 101021212210141. The reversal of 101021212210111 is 111012212120101.

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 101021212210111 - 2²⁷ = 101021077992383 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 (101021212210141) 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, 4889216860 + ... + 4889237521.

It is an arithmetic number, because the mean of its divisors is an integer number (25257747668706).

Almost surely, 2^{101021212210111} is an apocalyptic number.

101021212210111 is a deficient number, since it is larger than the sum of its proper divisors (9778464713).

101021212210111 is an equidigital number, since it uses as much as digits as its factorization.

101021212210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9778464712.

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

Adding to 101021212210111 its reverse (111012212120101), we get a palindrome (212033424330212).

The spelling of 101021212210111 in words is "one hundred one trillion, twenty-one billion, two hundred twelve million, two hundred ten thousand, one hundred eleven".