2001210222212 has 12 divisors (see below), whose sum is σ = 3511261802496. Its totient is φ = 997992564360.

The previous prime is 2001210222191. The next prime is 2001210222259. The reversal of 2001210222212 is 2122220121002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653134964 + ... + 653138027.

It is an arithmetic number, because the mean of its divisors is an integer number (292605150208).

Almost surely, 2^{2001210222212} is an apocalyptic number.

It is an amenable number.

2001210222212 is a deficient number, since it is larger than the sum of its proper divisors (1510051580284).

2001210222212 is a wasteful number, since it uses less digits than its factorization.

2001210222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306273378 (or 1306273376 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2001210222212 its reverse (2122220121002), we get a palindrome (4123430343214).

The spelling of 2001210222212 in words is "two trillion, one billion, two hundred ten million, two hundred twenty-two thousand, two hundred twelve".