2021120001212 has 72 divisors (see below), whose sum is σ = 4057908246000. Its totient is φ = 877378065408.

The previous prime is 2021120001167. The next prime is 2021120001227. The reversal of 2021120001212 is 2121000211202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17744339 + ... + 17857877.

It is an arithmetic number, because the mean of its divisors is an integer number (56359836750).

Almost surely, 2^{2021120001212} is an apocalyptic number.

It is an amenable number.

2021120001212 is an abundant number, since it is smaller than the sum of its proper divisors (2036788244788).

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

2021120001212 is a wasteful number, since it uses less digits than its factorization.

2021120001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115135 (or 115120 counting only the distinct ones).

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

Adding to 2021120001212 its reverse (2121000211202), we get a palindrome (4142120212414).

The spelling of 2021120001212 in words is "two trillion, twenty-one billion, one hundred twenty million, one thousand, two hundred twelve".