10010212121 has 8 divisors (see below), whose sum is σ = 12320261184. Its totient is φ = 7920167760.

The previous prime is 10010212103. The next prime is 10010212129. The reversal of 10010212121 is 12121201001.

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

It is a cyclic number.

It is not a de Polignac number, because 10010212121 - 2¹⁸ = 10009949977 is a prime.

10010212121 is a modest number, since divided by 212121 gives 10010 as remainder.

It is not an unprimeable number, because it can be changed into a prime (10010212129) 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, 55001075 + ... + 55001256.

It is an arithmetic number, because the mean of its divisors is an integer number (1540032648).

Almost surely, 2^10010212121 is an apocalyptic number.

It is an amenable number.

10010212121 is a deficient number, since it is larger than the sum of its proper divisors (2310049063).

10010212121 is a wasteful number, since it uses less digits than its factorization.

10010212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110002351.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10010212121 its reverse (12121201001), we get a palindrome (22131413122).

The spelling of 10010212121 in words is "ten billion, ten million, two hundred twelve thousand, one hundred twenty-one".