1001211220106 has 16 divisors (see below), whose sum is σ = 1583058556800. Its totient is φ = 473598325728.

The previous prime is 1001211220091. The next prime is 1001211220117. The reversal of 1001211220106 is 6010221121001.

It is a super-2 number, since 2×1001211220106² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18295115 + ... + 18349758.

It is an arithmetic number, because the mean of its divisors is an integer number (98941159800).

Almost surely, 2^{1001211220106} is an apocalyptic number.

1001211220106 is a deficient number, since it is larger than the sum of its proper divisors (581847336694).

1001211220106 is a wasteful number, since it uses less digits than its factorization.

1001211220106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36645613.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1001211220106 its reverse (6010221121001), we get a palindrome (7011432341107).

The spelling of 1001211220106 in words is "one trillion, one billion, two hundred eleven million, two hundred twenty thousand, one hundred six".