1001023212 has 24 divisors (see below), whose sum is σ = 2669395456. Its totient is φ = 286006608.

The previous prime is 1001023211. The next prime is 1001023213. The reversal of 1001023212 is 2123201001.

It is an interprime number because it is at equal distance from previous prime (1001023211) and next prime (1001023213).

It is a super-3 number, since 3×1001023212³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1001023211) 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, 5958388 + ... + 5958555.

Almost surely, 2^1001023212 is an apocalyptic number.

1001023212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001023212 is an abundant number, since it is smaller than the sum of its proper divisors (1668372244).

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

1001023212 is a wasteful number, since it uses less digits than its factorization.

1001023212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11916957 (or 11916955 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1001023212 is about 31638.9508675620. The cubic root of 1001023212 is about 1000.3409544035.

Adding to 1001023212 its reverse (2123201001), we get a palindrome (3124224213).

The spelling of 1001023212 in words is "one billion, one million, twenty-three thousand, two hundred twelve".