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121220111221032 = 23329792204643373
BaseRepresentation
bin11011100011111111000001…
…101010110100000100101000
3120220012112021222022000202010
4123203333001222310010220
5111342032241433033112
61105451430022435520
734350602234352525
oct3343770152640450
9526175258260663
10121220111221032
113569618464532a
1211719329b92ba0
135284013461365
1421d112855214c
15e0332ec2b63c
hex6e3fc1ab4128

121220111221032 has 64 divisors (see below), whose sum is σ = 317468645856000. Its totient is φ = 38519528995584.

The previous prime is 121220111221031. The next prime is 121220111221073. The reversal of 121220111221032 is 230122111022121.

It is not an unprimeable number, because it can be changed into a prime (121220111221031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1102266703 + ... + 1102376670.

It is an arithmetic number, because the mean of its divisors is an integer number (4960447591500).

Almost surely, 2121220111221032 is an apocalyptic number.

121220111221032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121220111221032 is an abundant number, since it is smaller than the sum of its proper divisors (196248534634968).

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

121220111221032 is a wasteful number, since it uses less digits than its factorization.

121220111221032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2204643490 (or 2204643486 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 121220111221032 its reverse (230122111022121), we get a palindrome (351342222243153).

The spelling of 121220111221032 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred eleven million, two hundred twenty-one thousand, thirty-two".