1001020011212 has 96 divisors (see below), whose sum is σ = 2020462080000. Its totient is φ = 430066796544.

The previous prime is 1001020011203. The next prime is 1001020011221. The reversal of 1001020011212 is 2121100201001.

It is an interprime number because it is at equal distance from previous prime (1001020011203) and next prime (1001020011221).

It is a junction number, because it is equal to n+sod(n) for n = 1001020011193 and 1001020011202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 240685589 + ... + 240689747.

It is an arithmetic number, because the mean of its divisors is an integer number (21046480000).

Almost surely, 2^{1001020011212} is an apocalyptic number.

It is an amenable number.

1001020011212 is an abundant number, since it is smaller than the sum of its proper divisors (1019442068788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001020011212 is a wasteful number, since it uses less digits than its factorization.

1001020011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8383 (or 8381 counting only the distinct ones).

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

Adding to 1001020011212 its reverse (2121100201001), we get a palindrome (3122120212213).

The spelling of 1001020011212 in words is "one trillion, one billion, twenty million, eleven thousand, two hundred twelve".