120101011111221 has 32 divisors (see below), whose sum is σ = 199286095718400. Its totient is φ = 62775120139200.

The previous prime is 120101011111139. The next prime is 120101011111307. The reversal of 120101011111221 is 122111110101021.

It is not a de Polignac number, because 120101011111221 - 2⁷ = 120101011111093 is a prime.

It is a super-2 number, since 2×120101011111221² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120101011111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120101011111121) 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, 5189730505 + ... + 5189753646.

It is an arithmetic number, because the mean of its divisors is an integer number (6227690491200).

Almost surely, 2^{120101011111221} is an apocalyptic number.

It is an amenable number.

120101011111221 is a deficient number, since it is larger than the sum of its proper divisors (79185084607179).

120101011111221 is a wasteful number, since it uses less digits than its factorization.

120101011111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10379484209.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 120101011111221 its reverse (122111110101021), we get a palindrome (242212121212242).

The spelling of 120101011111221 in words is "one hundred twenty trillion, one hundred one billion, eleven million, one hundred eleven thousand, two hundred twenty-one".