2001012011222 has 8 divisors (see below), whose sum is σ = 3430306304976. Its totient is φ = 857576576232.

The previous prime is 2001012011209. The next prime is 2001012011231. The reversal of 2001012011222 is 2221102101002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 142929429373 = 2001012011222 / (2 + 0 + 0 + 1 + 0 + 1 + 2 + 0 + 1 + 1 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 2001012011197 and 2001012011206.

It is a congruent 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, 71464714673 + ... + 71464714700.

It is an arithmetic number, because the mean of its divisors is an integer number (428788288122).

Almost surely, 2^{2001012011222} is an apocalyptic number.

2001012011222 is a deficient number, since it is larger than the sum of its proper divisors (1429294293754).

2001012011222 is a wasteful number, since it uses less digits than its factorization.

2001012011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142929429382.

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

Adding to 2001012011222 its reverse (2221102101002), we get a palindrome (4222114112224).

The spelling of 2001012011222 in words is "two trillion, one billion, twelve million, eleven thousand, two hundred twenty-two".