1020101212121 has 8 divisors (see below), whose sum is σ = 1020569340960. Its totient is φ = 1019633199552.

The previous prime is 1020101212003. The next prime is 1020101212183. The reversal of 1020101212121 is 1212121010201.

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 1020101212121 - 2³⁴ = 1002921342937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020101212096 and 1020101212105.

It is not an unprimeable number, because it can be changed into a prime (1020101212321) 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, 20790065 + ... + 20839073.

It is an arithmetic number, because the mean of its divisors is an integer number (127571167620).

Almost surely, 2^{1020101212121} is an apocalyptic number.

It is an amenable number.

1020101212121 is a deficient number, since it is larger than the sum of its proper divisors (468128839).

1020101212121 is an equidigital number, since it uses as much as digits as its factorization.

1020101212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58135.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1020101212121 its reverse (1212121010201), we get a palindrome (2232222222322).

It can be divided in two parts, 102010 and 1212121, that added together give a palindrome (1314131).

The spelling of 1020101212121 in words is "one trillion, twenty billion, one hundred one million, two hundred twelve thousand, one hundred twenty-one".