1011110202121 has 16 divisors (see below), whose sum is σ = 1095726291264. Its totient is φ = 929297101824.

The previous prime is 1011110202119. The next prime is 1011110202217. The reversal of 1011110202121 is 1212020111101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1011110202121 - 2¹ = 1011110202119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011110202821) 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, 3214545 + ... + 3515041.

It is an arithmetic number, because the mean of its divisors is an integer number (68482893204).

Almost surely, 2^{1011110202121} is an apocalyptic number.

It is an amenable number.

1011110202121 is a deficient number, since it is larger than the sum of its proper divisors (84616089143).

1011110202121 is a wasteful number, since it uses less digits than its factorization.

1011110202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305160.

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

Adding to 1011110202121 its reverse (1212020111101), we get a palindrome (2223130313222).

The spelling of 1011110202121 in words is "one trillion, eleven billion, one hundred ten million, two hundred two thousand, one hundred twenty-one".