10122012121011 has 24 divisors (see below), whose sum is σ = 15898174571520. Its totient is φ = 5710791642192.

The previous prime is 10122012121009. The next prime is 10122012121049. The reversal of 10122012121011 is 11012121022101.

It is a happy number.

It is not a de Polignac number, because 10122012121011 - 2¹ = 10122012121009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10122012121411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 435793611 + ... + 435816836.

It is an arithmetic number, because the mean of its divisors is an integer number (662423940480).

Almost surely, 2^{10122012121011} is an apocalyptic number.

10122012121011 is a deficient number, since it is larger than the sum of its proper divisors (5776162450509).

10122012121011 is an equidigital number, since it uses as much as digits as its factorization.

10122012121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871610543 (or 871610536 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10122012121011 its reverse (11012121022101), we get a palindrome (21134133143112).

The spelling of 10122012121011 in words is "ten trillion, one hundred twenty-two billion, twelve million, one hundred twenty-one thousand, eleven".