1011000121222 has 96 divisors (see below), whose sum is σ = 2035581637824. Its totient is φ = 367247462400.

The previous prime is 1011000121177. The next prime is 1011000121277. The reversal of 1011000121222 is 2221210001101.

It is a super-2 number, since 2×1011000121222² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1342572 + ... + 1955632.

It is an arithmetic number, because the mean of its divisors is an integer number (21203975394).

Almost surely, 2^{1011000121222} is an apocalyptic number.

1011000121222 is an abundant number, since it is smaller than the sum of its proper divisors (1024581516602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011000121222 is a wasteful number, since it uses less digits than its factorization.

1011000121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613154 (or 613141 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1011000121222 its reverse (2221210001101), we get a palindrome (3232210122323).

The spelling of 1011000121222 in words is "one trillion, eleven billion, one hundred twenty-one thousand, two hundred twenty-two".