1020012121001 has 8 divisors (see below), whose sum is σ = 1084442748480. Its totient is φ = 957255016432.

The previous prime is 1020012120961. The next prime is 1020012121019. The reversal of 1020012121001 is 1001212100201.

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 1020012121001 - 2³⁰ = 1018938379177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020012121021) 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, 418379471 + ... + 418381908.

It is an arithmetic number, because the mean of its divisors is an integer number (135555343560).

Almost surely, 2^{1020012121001} is an apocalyptic number.

It is an amenable number.

1020012121001 is a deficient number, since it is larger than the sum of its proper divisors (64430627479).

1020012121001 is an equidigital number, since it uses as much as digits as its factorization.

1020012121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836761455.

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

Adding to 1020012121001 its reverse (1001212100201), we get a palindrome (2021224221202).

The spelling of 1020012121001 in words is "one trillion, twenty billion, twelve million, one hundred twenty-one thousand, one".