211020011001212 has 24 divisors (see below), whose sum is σ = 422042188968960. Its totient is φ = 90436683222000.

The previous prime is 211020011001203. The next prime is 211020011001221. The reversal of 211020011001212 is 212100110020112.

It is an interprime number because it is at equal distance from previous prime (211020011001203) and next prime (211020011001221).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13769012 + ... + 24731067.

It is an arithmetic number, because the mean of its divisors is an integer number (17585091207040).

Almost surely, 2^{211020011001212} is an apocalyptic number.

It is an amenable number.

211020011001212 is an abundant number, since it is smaller than the sum of its proper divisors (211022177967748).

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

211020011001212 is a wasteful number, since it uses less digits than its factorization.

211020011001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38695841 (or 38695839 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211020011001212 its reverse (212100110020112), we get a palindrome (423120121021324).

The spelling of 211020011001212 in words is "two hundred eleven trillion, twenty billion, eleven million, one thousand, two hundred twelve".