10211012120121 has 8 divisors (see below), whose sum is σ = 13627636858464. Its totient is φ = 6800864397600.

The previous prime is 10211012120087. The next prime is 10211012120129. The reversal of 10211012120121 is 12102121011201.

It is a happy number.

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

It is not a de Polignac number, because 10211012120121 - 2¹⁰ = 10211012119097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10211012120121.

It is not an unprimeable number, because it can be changed into a prime (10211012120129) 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, 1619250276 + ... + 1619256581.

It is an arithmetic number, because the mean of its divisors is an integer number (1703454607308).

Almost surely, 2^{10211012120121} is an apocalyptic number.

It is an amenable number.

10211012120121 is a deficient number, since it is larger than the sum of its proper divisors (3416624738343).

10211012120121 is a wasteful number, since it uses less digits than its factorization.

10211012120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238507911.

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

Adding to 10211012120121 its reverse (12102121011201), we get a palindrome (22313133131322).

The spelling of 10211012120121 in words is "ten trillion, two hundred eleven billion, twelve million, one hundred twenty thousand, one hundred twenty-one".