10211110112121 has 8 divisors (see below), whose sum is σ = 13627645545024. Its totient is φ = 6800990710320.

The previous prime is 10211110112117. The next prime is 10211110112179. The reversal of 10211110112121 is 12121101111201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10211110112121 - 2² = 10211110112117 is a prime.

It is a super-2 number, since 2×10211110112121² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10211110112121.

It is not an unprimeable number, because it can be changed into a prime (10211110112101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1604004061 + ... + 1604010426.

It is an arithmetic number, because the mean of its divisors is an integer number (1703455693128).

Almost surely, 2^{10211110112121} is an apocalyptic number.

It is an amenable number.

10211110112121 is a deficient number, since it is larger than the sum of its proper divisors (3416535432903).

10211110112121 is a wasteful number, since it uses less digits than its factorization.

10211110112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208015551.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 10211110112121 its reverse (12121101111201), we get a palindrome (22332211223322).

The spelling of 10211110112121 in words is "ten trillion, two hundred eleven billion, one hundred ten million, one hundred twelve thousand, one hundred twenty-one".