1001011211222 has 32 divisors (see below), whose sum is σ = 1652716012320. Its totient is φ = 450923397120.

The previous prime is 1001011211201. The next prime is 1001011211341. The reversal of 1001011211222 is 2221121101001.

It is a junction number, because it is equal to n+sod(n) for n = 1001011211197 and 1001011211206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25757918 + ... + 25796750.

It is an arithmetic number, because the mean of its divisors is an integer number (51647375385).

Almost surely, 2^{1001011211222} is an apocalyptic number.

1001011211222 is a deficient number, since it is larger than the sum of its proper divisors (651704801098).

1001011211222 is a wasteful number, since it uses less digits than its factorization.

1001011211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49328.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1001011211222 its reverse (2221121101001), we get a palindrome (3222132312223).

The spelling of 1001011211222 in words is "one trillion, one billion, eleven million, two hundred eleven thousand, two hundred twenty-two".