10101212122111 has 16 divisors (see below), whose sum is σ = 11603573130240. Its totient is φ = 8696537205120.

The previous prime is 10101212122097. The next prime is 10101212122123. The reversal of 10101212122111 is 11122121210101.

It is not a de Polignac number, because 10101212122111 - 2¹³ = 10101212113919 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 (10101212122811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7937935 + ... + 9122128.

It is an arithmetic number, because the mean of its divisors is an integer number (725223320640).

Almost surely, 2^{10101212122111} is an apocalyptic number.

10101212122111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10101212122111 is a deficient number, since it is larger than the sum of its proper divisors (1502361008129).

10101212122111 is a wasteful number, since it uses less digits than its factorization.

10101212122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17062926.

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

Adding to 10101212122111 its reverse (11122121210101), we get a palindrome (21223333332212).

The spelling of 10101212122111 in words is "ten trillion, one hundred one billion, two hundred twelve million, one hundred twenty-two thousand, one hundred eleven".