20211001012212 has 24 divisors (see below), whose sum is σ = 49209393769536. Its totient is φ = 6444087279168.

The previous prime is 20211001012187. The next prime is 20211001012231. The reversal of 20211001012212 is 21221010011202.

It is a junction number, because it is equal to n+sod(n) for n = 20211001012191 and 20211001012200.

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, 36614131993 + ... + 36614132544.

It is an arithmetic number, because the mean of its divisors is an integer number (2050391407064).

Almost surely, 2^{20211001012212} is an apocalyptic number.

It is an amenable number.

20211001012212 is an abundant number, since it is smaller than the sum of its proper divisors (28998392757324).

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

20211001012212 is a wasteful number, since it uses less digits than its factorization.

20211001012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73228264567 (or 73228264565 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20211001012212 its reverse (21221010011202), we get a palindrome (41432011023414).

The spelling of 20211001012212 in words is "twenty trillion, two hundred eleven billion, one million, twelve thousand, two hundred twelve".