121022101011 has 24 divisors (see below), whose sum is σ = 186154608640. Its totient is φ = 68509037232.

The previous prime is 121022101003. The next prime is 121022101027. The reversal of 121022101011 is 110101220121.

It is not a de Polignac number, because 121022101011 - 2³ = 121022101003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121022109011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11251 + ... + 492108.

Almost surely, 2^121022101011 is an apocalyptic number.

121022101011 is a deficient number, since it is larger than the sum of its proper divisors (65132507629).

121022101011 is an equidigital number, since it uses as much as digits as its factorization.

121022101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503583 (or 503476 counting only the distinct ones).

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

Adding to 121022101011 its reverse (110101220121), we get a palindrome (231123321132).

The spelling of 121022101011 in words is "one hundred twenty-one billion, twenty-two million, one hundred one thousand, eleven".