1021200210212 has 96 divisors (see below), whose sum is σ = 2236642679040. Its totient is φ = 397227317760.

The previous prime is 1021200210193. The next prime is 1021200210301. The reversal of 1021200210212 is 2120120021201.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 5099318 + ... + 5295794.

It is an arithmetic number, because the mean of its divisors is an integer number (23298361240).

Almost surely, 2^{1021200210212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021200210212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1118321339520).

1021200210212 is an abundant number, since it is smaller than the sum of its proper divisors (1215442468828).

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

1021200210212 is a wasteful number, since it uses less digits than its factorization.

1021200210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196741 (or 196739 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1021200210212 its reverse (2120120021201), we get a palindrome (3141320231413).

The spelling of 1021200210212 in words is "one trillion, twenty-one billion, two hundred million, two hundred ten thousand, two hundred twelve".