2121001020212 has 24 divisors (see below), whose sum is σ = 3727838940672. Its totient is φ = 1055914120800.

The previous prime is 2121001020209. The next prime is 2121001020221. The reversal of 2121001020212 is 2120201001212.

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, 388364 + ... + 2095907.

It is an arithmetic number, because the mean of its divisors is an integer number (155326622528).

Almost surely, 2^{2121001020212} is an apocalyptic number.

It is an amenable number.

2121001020212 is a deficient number, since it is larger than the sum of its proper divisors (1606837920460).

2121001020212 is a wasteful number, since it uses less digits than its factorization.

2121001020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485199 (or 2485197 counting only the distinct ones).

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

Adding to 2121001020212 its reverse (2120201001212), we get a palindrome (4241202021424).

The spelling of 2121001020212 in words is "two trillion, one hundred twenty-one billion, one million, twenty thousand, two hundred twelve".