1211201101022 has 8 divisors (see below), whose sum is σ = 1981965438072. Its totient is φ = 550545955000.

The previous prime is 1211201100953. The next prime is 1211201101031. The reversal of 1211201101022 is 2201011021121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1211201100988 and 1211201101006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27527297729 + ... + 27527297772.

It is an arithmetic number, because the mean of its divisors is an integer number (247745679759).

Almost surely, 2^{1211201101022} is an apocalyptic number.

1211201101022 is a deficient number, since it is larger than the sum of its proper divisors (770764337050).

1211201101022 is a wasteful number, since it uses less digits than its factorization.

1211201101022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55054595514.

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

Adding to 1211201101022 its reverse (2201011021121), we get a palindrome (3412212122143).

The spelling of 1211201101022 in words is "one trillion, two hundred eleven billion, two hundred one million, one hundred one thousand, twenty-two".