212021011000000 has 196 divisors, whose sum is σ = 529919628035688. Its totient is φ = 84160960000000.

The previous prime is 212021010999947. The next prime is 212021011000013. The reversal of 212021011000000 is 110120212.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 130190760 + ... + 131809240.

Almost surely, 2^{212021011000000} is an apocalyptic number.

212021011000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212021011000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264959814017844).

212021011000000 is an abundant number, since it is smaller than the sum of its proper divisors (317898617035688).

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

212021011000000 is an frugal number, since it uses more digits than its factorization.

212021011000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618654 (or 1618619 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 212021011000000 its reverse (110120212), we get a palindrome (212021121120212).

The spelling of 212021011000000 in words is "two hundred twelve trillion, twenty-one billion, eleven million", and thus it is an aban number.