1000122201111 has 32 divisors (see below), whose sum is σ = 1479696341760. Its totient is φ = 595815552000.

The previous prime is 1000122201101. The next prime is 1000122201139. The reversal of 1000122201111 is 1111022210001.

It is not a de Polignac number, because 1000122201111 - 2¹⁵ = 1000122168343 is a prime.

It is a super-2 number, since 2×1000122201111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000122201101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 616090 + ... + 1542663.

It is an arithmetic number, because the mean of its divisors is an integer number (46240510680).

Almost surely, 2^{1000122201111} is an apocalyptic number.

1000122201111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1000122201111 is a deficient number, since it is larger than the sum of its proper divisors (479574140649).

1000122201111 is a wasteful number, since it uses less digits than its factorization.

1000122201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159007.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1000122201111 its reverse (1111022210001), we get a palindrome (2111144411112).

The spelling of 1000122201111 in words is "one trillion, one hundred twenty-two million, two hundred one thousand, one hundred eleven".