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121000022 = 21113439839
BaseRepresentation
bin1110011011001…
…01000001010110
322102200102211022
413031211001112
5221434000042
620001241142
72666324513
oct715450126
9272612738
10121000022
1162335120
12346331b2
131c0b7160
14120da30a
15a951cd2
hex7365056

121000022 has 32 divisors (see below), whose sum is σ = 218211840. Its totient is φ = 49583520.

The previous prime is 121000003. The next prime is 121000049. The reversal of 121000022 is 220000121.

It is a junction number, because it is equal to n+sod(n) for n = 120999973 and 121000009.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7379 + ... + 17217.

It is an arithmetic number, because the mean of its divisors is an integer number (6819120).

Almost surely, 2121000022 is an apocalyptic number.

121000022 is a deficient number, since it is larger than the sum of its proper divisors (97211818).

121000022 is a wasteful number, since it uses less digits than its factorization.

121000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9908.

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

The square root of 121000022 is about 11000.0010000000. The cubic root of 121000022 is about 494.6087743012.

Adding to 121000022 its reverse (220000121), we get a palindrome (341000143).

Subtracting 121000022 from its reverse (220000121), we obtain a palindrome (99000099).

The spelling of 121000022 in words is "one hundred twenty-one million, twenty-two", and thus it is an aban number.