1211101122000 has 320 divisors, whose sum is σ = 4868062138368. Its totient is φ = 251657280000.

The previous prime is 1211101121987. The next prime is 1211101122031. The reversal of 1211101122000 is 2211011121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 848716 + ... + 1772715.

Almost surely, 2^{1211101122000} is an apocalyptic number.

1211101122000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1211101122000 is an abundant number, since it is smaller than the sum of its proper divisors (3656961016368).

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

1211101122000 is a wasteful number, since it uses less digits than its factorization.

1211101122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621475 (or 2621459 counting only the distinct ones).

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

Adding to 1211101122000 its reverse (2211011121), we get a palindrome (1213312133121).

The spelling of 1211101122000 in words is "one trillion, two hundred eleven billion, one hundred one million, one hundred twenty-two thousand".